Dr. Ravindra  K. Pandey
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Dr. Ravindra K. Pandey

State University of New York, USA

Highest Degree
Ph.D. in Medicinal Chemistry from University of Rajasthan, Jaipur, India

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Area of Interest:

Heterocyclic Chemistry

Research Publications in Numbers


Selected Publications

  1. Wang, S., G. Kim, Y.E.K. Lee, H.J. Hah and M. Ethirajan et al., 2012. Multifunctional biodegradable polyacrylamide nanocarriers for cancer theranostics: A see and treat strategy. ACS Nano, 6: 6843-6851.
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  2. Kozyrev, A., M. Ethirajan, P. Chen, K. Ohkubo and B.C. Robinson et al., 2012. Photophysical and electrochemistry of near-IR absorbing bacteriochlorins related to bacteriochlorophyll a. J. Org. Chem., 77: 10260-10271.
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  3. Gupta, A., S. Wang, P. Pera, K.V.R. Roa and N. Patel et al., 2012. Multifunctional nanoplatforms for fluorescence imaging and photodynamic therapy developed by post-loading photosensitizer and fluorophore to polyacrylamide nanoparticles. Nanomedicine, 8: 941-950.
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  4. Gupta, A., S. Wang, M. Sajjad, Y. Chen, R. Yao, R. Kopelman and R.K. Pandey, 2012. Iodinated photosensitizer post-loaded in PAA nanoparticles showed remarkable enhancement in tumor-uptake, PET-imaging and photodynamic therapy. Nat. Nanotechnol., 8: 941-950.
  5. Chen, G., J. Ahen, T.Y. Ohulchanskyy, N.J. Patel and A. Kutikov et al., 2012. (α-NaYbF4:Tm3+)/CaF2 core/shell nanoparticles with efficient near-infrared to near-infrared upconversion for high-contrast deep tissue bioimaging. Nano ACS., 6: 8280-8287.
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  6. Williams, M., M. Ethirajan, K. Ohkubo, P. Chen and P. Pera et al., 2011. Synthesis, photophysical, electrochemical, tumor-imaging and phototherapeutic properties of purpurinimide-N-substituted cyanine dyes joined with variable lengths of linkers. Bioconjugate Chem., 22: 2283-2295.
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  7. Wang, S., W. Fan, G. Kim, H.J. Hah and Y.E.K. Lee et al., 2011. Novel methods to incorporate photosensitizers into nanocarriers for cancer treatment by photodynamic therapy. Lasers Surg. Med., 43: 686-695.
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  8. Tracy, E.C., M.J. Bowman, R.K. Pandey, B.W. Henderson and H. Baumann, 2011. Cell-type selective phototoxicity achieved with chlorophyll-a derived photosensitizers in a co-culture system of primary human tumor and normal lung cells. Photochem. Photobiol., 87: 1405-1418.
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  9. Srivatsan, A., Y. Wang, P. Joshi, M. Sajjad and Y. Chen et al., 2011. Correlation between the cellular uptake, STAT-3 dimerization, in vitro/in vivo PDT efficacy and PET imaging potential of multifunctional photosensitizers (isomers) derived from chlorophyll-a and bacteriochlorophyll-a. J. Med. Chem., 54: 6859-6873.
  10. Srivatsan, A., M. Ethirajan, S.K. Pandey, S. Dubey and M. Shibata et al., 2011. Conjugation of cRGD peptide to chlorophyll-a based photosensitizer (HPPH) altered its pharmacokinetics with enhanced tumor-imaging and PDT efficacy. Mol. Pharm., 8: 1186-1197.
  11. Saenz, C., M. Ethirajan, G. Lacobucci, A. Pandey, J.R. Missert, M.P. Dobhal and R.K. Pandey, 2011. Indium as a central metal enhances the photosensitizing efficacy of benzoporphyrin derivatives. J. Porphyrins Phthalocyanines, 15: 1310-1316.
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  12. Joshi, P., M. Ethirajan, L. Goswami, A. Srivatsan, M. Dobhal, J. Missert and R.K. Pandey, 2011. Ketobacteriochlorins with variable lipophilicity derived from bacteriochlorophyll-a show a significant difference in PDT efficacy. J. Org. Chem., 76: 8629-8640.
  13. Gupta, A., L.N. Goswami, M. Ethirajan, J. Missert and K.V.K. Rao et al., 2011. Organically modified silica nanoparticles as drug delivery vehicles in photodynamic therapy. J. Porphyrins Phthalocyanines, 15: 401-411.
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  14. Gil, M., M. Bieniasz, M. Seshadri, D. Fisher and M.J. Ciesielski et al., 2011. Photodynamic therapy augments the efficacy of oncolytic vaccinia virus against primary and metastatic tumours in mice. British J. Cancer, 105: 1512-1521.
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  15. Ethirajan, M., Y. Chen, P. Joshi and R.K. Pandey, 2011. The role of porphyrin chemistry in tumor imaging and photodynamic therapy. Royal Soc. Chem. Rev., 40: 340-362.
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  16. Ethirajan, M., P. Joshi, W. White, K. Ohkubo, S. Fikuzumi and R.K. Pandey, 2011. Remarkable regioselective position-10 bromination of bacteriopyropheophorbide-a and ring-B reduced pyropheophorbide-a. Org. Lett., 13: 1956-1959.
  17. Chen, Y., M. Sajjad, Y. Wang, C. Batt, H.A. Nabi and R.K. Pandey, 2011. TSPO 18 kDa (PBR) targeted photosensitizers for cancer imaging (PET) and PDT. J. Med. Chem., 2: 136-141.
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  18. Spernyak, J.A., W.H. White III, L.N. Goswami, M. Ethirajan and Y. Chen et al., 2010. Hexyl ether derivative of pyropheophorbide-a (HPPH) on conjugating with 3Gd(III) ADTPA show s potential for In vivo tumor-imaging (MR-Fluorescence) and PDT. Bioconjugate Chem., 21: 828-835.
  19. Morgan, J., J.D.Jackson, X. Zheng, S.K. Pandey and R.K. Pandey, 2010. Substrate affinity of photosensitizers derived from chlorophyll-a: The ABCG2 transporter affects the phototoxic response of side population stem cell-like cancer cells to photodynamic therapy. Mol. Pharma., 7: 1789-1804.
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  20. Goswami, L.N., W.H. White III, J.A. Spernyak, M. Ethirajan and Y. Chen et al., 2010. Synthesis of tumor-avid photosensitizer-Gd(III)DTPA conjugates: Impact of the number of gadolinium units in t1/t2 relaxivity, intracellular localization and photosensitizing efficacy. Bioconjugate Chem., 21: 816-827.
  21. Pandey, S.K., M. Sajjad, Y. Chen, R. Yao and J.R.M.C. Batt et al., 2009. Comparative PET Imaging and Phototherapeutic Potential of 124I- Labeled methyl-3-(1'-iodobenzyloxyethyl) pyropheo phorbide-a vs. the corresponding glucose and galactose conjugate. J. Med. Chem., 52: 445-455.
  22. Pandey, S.K., M. Sajjad, Y. Chen, A. Pandey and R. Yao et al., 2009. Compared to purpurinimides, the pyropheophorbide containing an iodobenzyl group showed enhanced PDT efficacy and tumor imaging (124I-PET) ability. Bioconjugate Chem., 20: 274-282.
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  23. Goswami, L.N., M. Ethirajan, M.P. Dobhal, M. Zhang and J.R. Missert et al., 2009. Remarkable features of the mcmurry reaction conditions in dimerization of formyl- and 2-formylvinylpurpurinimides. Electrochemistry of monomeric Ni(II) purpurinimide and the corresponding. J. Org. Chem., 74: 568-579.
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  24. Zheng, X. and R.K. Pandey, 2008. Porphyrin-carbohydrate conjugates: impact of carbohydrate moieties in photodynamic therapy (PDT). Anticancer Agents Med. Chem., 8: 241-268.
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  25. Pandey, R.K., X. Zheng, M.P. Dobhal and K.M. Smith, 2008. Formation of chlorins and meso-substituted porphyrins through intramolecular nitrogen-carbon migration of N-substituted porphyrins. J. Porphyrins Phthalocyanines, 12: 131-141.
  26. Pandey, R.K., N. James, Y. Chen and M.P. Dobhal, 2008. Cyanine dye-based compounds for tumor imaging with and without photodynamic therapy. Top. Heterocyclic Chem., 14: 41-74.
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  27. Noiseux, I., O. Mermut, J.P. Bouchard, J.F. Cormier and P. Desroches et al., 2008. Effect of liposomal confinement on photochemical properties of photosensitizers with varying hydrophilicity. J. Biomed. Optics, Vol 13. 10.1117/1.2950309.
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  28. Liu, C., M.P. Dobhal, J.R. Missert and R.K. Pandey, 2008. Highly selective synthesis of b-ring reduced chlorins by ferric chloride mediated oxidation of bacteriochlorins: A remarkable effect of the fused imide ring in the electronic absorption characteristics of new chromophores. J. Am. Chem. Soc., 130: 14311-14323.
  29. Fukuzumi, S., K. Ohkubo, X. Zheng, R.K. Pandey, R. Zhan and K.M. Kadish, 2008. Metal bacteriochlorins which act as dual singlet oxygen and superoxide generators. J. Phys. Chem. B., 112: 2738-2746.
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  30. Ramaprasad, S., E. Ripp, J. Missert and R.K. Pandey, 2007. In vivo 19F MR studies of fluorine labeled photosensitizers in a murine tumor model. Cancer Drug Discov. Technol., 4: 126-132.
  31. Pandey, S.K., X. Zheng, J. Morgan, S. Camacho, W. Potter, D.A. Bellnier and R.K. Pandey, 2007. Purpurinimide carbohydrate conjugates:  Effect of the position of the carbohydrate moiety in photosensitizing efficacy. Mol. Pharm., 4: 448-454.
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  32. Liu, W., M.R. Baer, M.J. Bowman, P. Pera, X. Zheng, J. Morgan, R.K. Pandey and A.R. Oseroff, 2007. The tyrosine kinase inhibitor imatinib mesylate enhances the efficacy of photodynamic therapy by inhibiting ABCG2. Clin. Cancer Res., 13: 2463-2470.
    PubMed  |  
  33. Kim, S., T.Y. Ohulchanskyy, H.E. Pudavar, R.K. Pandey and P.N. Prasad, 2007. A nanomedicine, nanophotonics approach to two photon photodynamic therapy: Organically modified silica nanoparticles co-encapsulating photosensitizing drug and dye nanoaggregates with aggregation-enhanced two-photon absorption and emission. J. Am. Chem. Soc., 129: 2669-2675.
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  34. Goswami, L.N., J. Missert, A. Pallenberg and R.K. Pandey, 2007. Conversion of bacteriochlorophyll-a to bacteriopurpurin-18: A useful synthon for the construction of bioactive agents for photodynamic therapy (PDT). Heterocycles, 71: 1929-1949.
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  35. Chen, Y., W. Potter, J. Missert and R.K. Pandey, 2007. Comparative in vitro and in vivo studies on long-wavelength photosensitizers derived from bacteriopurpurinimide and bacteriochlorin p6:  Fused imide ring enhances the in vivo PDT efficacy. Bioconjugate Chem., 18: 1460-1473.
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  36. Chen, Y., M. Shibata, M. Rajeswaran, T. Srikrishnan, S. Dugar and R.K. Pandey, 2007. Utility of Japp-Klingemann reaction for the preparation of 5-carboxy-6-chloroindole via Fischer indole protocol. Tetrahedron Lett., 48: 2353-2356.
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  37. Baba, K., H.E. Pudavar, I. Roy, T.Y. Ohulchanskyy, Y. Chen, R.K Pandey and P.N. Prasad, 2007. A New method for delivering a Hydrophobic 29 Drug for photodynamic therapy using pure nanocrystal form of the drug. Mol. Pharm., 2: 289-297.
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  38. Rosenfeld, A., J.M. Lalit, N.Goswami, X. Zheng, T. Ohulchanskyy, P.N. Prasad and R.K. Pandey, 2006. Photosensitizers derived from 132-oxo-methyl pyropheophorbide-a: Enhanced effect of indium (iii) as a central metal in in vitro and in vivo photosensitizing efficacy. Photochem. Photobiol., 82: 626-634.
  39. Pandey, R.K., L.N. Goswami,Y. Chen,A. Gryshuk, J.R. Missert, A. Oseroff and T.J. Dougherty, 2006. Nature: A rich source for developing multifunctional agents. tumor-imaging and photodynamic therapy. Lasers Surg. Med., 38: 445-467.
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  40. Loewan, G.M., R. Pandey, D. Bellnier, B. Henderson and T.J. Dougherty, 2006. Endobronchial photodynamic therapy for lung cancer. Lasers Surg. Med., 38: 364-370.
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  41. Kozyrev, A.N., Y. Chen, L.N. Goswami, W. Tabaczynski and R.K. Pandey, 2006. Characterization of novel porphyrins, chlorins and bacteriochlorins formed via allomerisation of bacteriochlorophyll-a. Synthesis of highly stable bacteriopurpurinimides and their metal complexes. J. Org. Chem., 71: 1949-1960.
  42. Tamiaki, H., Y. Shimamura, H. Yoshimura, S.K. Pandey and R.K. Pandey, 2005. Self-aggegation of synthetic Zinc 3-hydroxymethyl-purpurin-18 and N-hexylimide methyl esters in an aqueous solution as models of green photosynthetic bacterial chlorosomes. Chem. Lett., 34: 1344-1345.
  43. Pandey, S.K., A.L. Gryshuk, M. Sajjad, X. Zheng and Y. Chen et al., 2005. Multiomodality agents for tumor imaging (PET, Fluorescence) and 28 photodynamic therapy: A possible see and treat approach. J. Med. Chem., 48: 6286-6295.
  44. Chen, Y., X. Zheng, M.P. Dobhal, A. Gryshuk and J. Morgan et al., 2005. Methyl pyropheophorbide-a analogs: Potential fluorescent probes for the peripheral-type benzodiazepine receptor. Effect of central metal in photosensitizing efficacy. J. Med. Chem., 48: 3692-3695.
  45. Chen, Y., R. Miclea, T. Srikrishnan, S. Balasubramanian, T.J. Dougherty and R.K. Pandey, 2005. Investigation of Human Serum Albumin (HSA) binding specificity of certain photosensitizers related to pyropheophorbide-a and bacteriopurpurinimide by circular dichroism spectroscopy and its correlation with in vivo photosensitizing efficacy. Bioorg. Med. Chem. Lett., 15: 3189-3192.
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  46. Chen, Y., A. Gryshuk, S. Achilefu, T. Ohulchansky and W. Potter et al., 2005. A novel approach to a bifunctional photosentizer for tumor imaging and phototherapy. Bioconjugate Chem., 16: 1264-1274.
  47. Ramaprasad, S., E. Rzepka, J. Pi, S.S. Joshi, M.P. Dobhal, J. Missert and R.K. Pandey, 2004. Monitoring PDT effects in murine tumors by spectroscopic and imaging techniques. Proceedings of SPIE, Volume 5369, April 30, 2004, USA., pp: 380-386.
  48. Pallenberg, A.J., M.P. Dobhal and R.K. Pandey, 2004. Efficient synthesis of pyropheophorbide-a and its derivatives. Org. Process. Res. Dev., 8: 287-290.
  49. Ohkubo, K., J. Shao, Z. Ou, K.M. Kadish and G. Li et al., 2004. Horoshi imahori and shunichi fukuzumi, ultra lived charge-separated state in zinc chlorin-C60 dyad produced by one-step photoinduced electron transfer. Angew. Chem., 43: 853-856.
  50. Li, G., S.K. Pandey, M.P. Dobhal, R. Mehta and Y. Chen et al., 2004. Functionalization of OEP-based benzochlorins to develop galectin-specific photosensitizers for photodynamic therapy. J. Org. Chem., 69: 158-172.
  51. Li, G., M.P. Dobhal, M. Shibata and R.K. Pandey, 2004. Purpurinimide-fullerene dyads:  Introduction of fullerene moiety at various peripheral positions of the purpurinimide system. Org. Lett., 6: 2393-2396.
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  52. Dobhal, M.P., G. Li, A. Gryshuk, A. Graham and A.K. Bhatanager et al., 2004. Structural modifications of plumieride isolated from plumeria bicolor and the effect of these modifications in in vitro anti-cancer activity. J. Org. Chem., 69: 6165-6172.
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  53. Chen, Y., G. Li and R.K. Pandey, 2004. Synthetic strategies for the preparation of bacteriochlorins as potential photosensitizers in photodynamic therapy. Current Org. Chem., 8: 1105-1134.
  54. Chen, Y., A. Sumlin, J. Morgan, A. Gryshuk and A. Oseroff et al., 2004. Synthesis of isomerically pure bacteriopurpurinimide: Impact ofchirality in photodynamic therapy. J. Med. Chem., 47: 4814-4817.
  55. Sang, S., G. Li, S. Tian, K. Lapsley, R.E. Stark, R.K. Pandey, R.T. Rosen and C.T. Ho, 2003. An unusual diterpene glycoside from the nuts of almond (Prunus amygdalus Batsch). Tetrahedron Lett., 44: 1199-1202.
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  56. Pandey, S.K., A.L. Gryshuk, A. Graham, K. Ohkubo and S. Fukuzumi et al., 2003. Fluorinated photosensitizers: Synthesis, photophysical, electrochemical, intracellular localization and in-vitro photosensitizing efficacy. Tetrahedron, 59: 10059-10073.
  57. Ma, B., G. Li, P. Kanter, D. Lamonica, Z. Grossman and R.K. Pand, 2003. Bifunctional HPPH-N2S2-99mTc conjugates as tumor imaging agents: Synthesis and biodistribution studies. J. Porphyrins Phthal., 6: 500-509.
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  58. Li, G., T.J. Dougherty and R.K. Pandey, 2003. Thermolysis of vic-dihydroxybacteriochlorins:  Effect of the nature of substrates in directing the formation of chlorin-chlorin dimers with fixed and flexible orientations and their preliminary in vitro photosensitizing efficacy. J. Org. Chem., 68: 3762-3772.
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  59. Graham, A., G. Li, Y. Chen, J. Morgan, A. Oseroff, T.J. Dougherty and R.K. Pandey, 2003. Structure-activity relationship of new octaethylporphyrin-based benzochlorins as photosensitizers for photodynamic therapy. J. Photochem. Photobiol., 77: 561-566.
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  60. Bellnier, D.A., W.R. Greco, G.M. Loewen, V. Nava and A.R. Oseroff et al., 2003. Population pharmacokinetics of the photodynamic therapy agent 2-[1-hexyloxyethyl]-2-devinyl pyropheophorbide-a in cancer patients. Cancer Res., 63: 1806-1813.
    PubMed  |  
  61. Pandey, R.K., 2002. PDT Drug Design. Biomedical Photonics Handbook, CRC Press, Boca Raton, Florida.
  62. Ohkubo, K., H. Imahori, J. Shao, Z. Ou and K.M. Kadish et al., 2002. Osamu ito and shunichi fukuzumi small recognition of intramolecular electron tranfer in fullerene-based dyads with short linkage. J. Phy. Chem. A., 106: 10991-10998.
  63. Li, G., R. Mehta, T. Srikrishnan, D. Nurco, K.M. Smith, T.J. Dougherty and R.K. Pandey, 2002. A novel synthetic route to fused propenochlorin and benzochlorin photodynamic therapy probes. Chem. Commun., 7: 1172-1173.
    PubMed  |  
  64. Gryshuk, A.L., A. Graham, S.K. Pandey, W.R. Potter and J.R. Missert et al., 2002. A first comparative study of purpurinimide-based fluorinated vs. nonfluorinated photosensitizers for photodynamic therapy. Photochem. Photobiol., 76: 555-559.
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  65. Fukuzumi, S., K. Ohkubo, Y. Chen, R.K. Pandey, R. Zhan, J. Shao and K.M. Kadish, 2002. Photophysical and Electrochemical properties of new bacteriochlorins and characterization of radical cation and radical anion species. J. Phy. Chem. A., 106: 5105-5113.
  66. Dougherty, T.J., A. Sumlin, W. Greco, K. Weishaupt, L. Haughan and R.K. Pandey, 2002. The role of the peripheral benzodiazepine receptor in photodynamic activity of certain pyropheophorbide ether photosensitizers: Albumin site II as a surrogate marker for activity. Photochem. Photoniol., 76: 91-97.
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  67. Zheng, G., A. Graham, M. Shibata, S.J.R. Missert, A. Oseroff, T.J. Dougherty and R.K. Pandey, 2001. Galaptin-1 recognized photosensitizers for photodynamic therapy. J. Org. Chem., 66: 8709-8716.
  68. Moesta, K.T., N. Ebert, T. Handke, D. Nolte and C. Nowak et al., 2001. Protoporphyrin IX occurs naturally in colorectal cancers and their metastases. Cancer Res., 61: 991-999.
  69. Li, G., A. Graham, W. Potter, Z.D. Grossman, A. Oseroff, T.J. Dougherty and R.K. Pandey, 2001. A simple and efficient approach for the synthesis of fluorinated and nonfluorinated octaethylporphyrin-based benzochlorins with variable lipophilicity, their in vivo tumor uptake and the preliminary in vitro photosensitizing efficacy. J. Org. Chem., 66: 1316-1325.
  70. Hu, B., J.B. Kauksson, A.T. Tran, U. Kolczak and R.K. Pandey et al., 2001. 1H and 13C NMR Investigation of the influence of nonligated residue contacts on the heme electronic structure in cyanometmyoglobin complexes reconstituted with centro- and pseudocentrosymmetric hemins. J. Am. Chem. Soc., 123: 10063-10070.
  71. Fukuzumi, S., K. Ohkubo, H. Imahori, J. Shao and Z. Ou et al., 2001. An unusually long-lived charge separated state of Zincchlorin-C60 dyad as compared to corresponding porphyrin-C60 dyads. J. Am. Chem. Soc., 123: 10676-10683.
  72. Chen, Y., C.J. Medforth, J. Alderfer, K.M. Smith, T.J. Dougherty and R.K. Pandey, 2001. Effect of Porphyrin meso-substitution on somium teroxide reaction and the migratory aptitude of the alkyl groups in the intermediate vic-dihydroxychlorins under pinacol-pinacolone reaction conditions. J. Org. Chem., 66: 3930-3939.
  73. Zheng, G., W.R. Potter, A. Sumlin, T.J. Dougherty and R.K. Pandey, 2000. Photosensitizers related to purpurin-18-N-alkylimides: A comparative in vivo tumoricidal ability of ester versus amide functionalities. Bioorg. Med. Chem. Lett., 10: 123-127.
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  74. Zheng, G., M. Shibata, T.J. Dougherty and R.K. Pandey, 2000. Wittig reactions on photoprotoporphyrin IX: New synthetic models for the special pair of the photosynthetic reaction center. J. Organ. Chem., 65: 543-557.
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  75. Shim, Y.K., R.K. Pandey and K.M. Smith, 2000. Synthesis of deuteriom labelled hemin for heme protein NMR studies. J. Porphyrins Phthalocyanins, 4: 185-192.
  76. Rungta, A., G. Zheng, J.R. Missert, W.R. Potter, T.J. Dougherty and R.K. Pandey, 2000. Purpurinimides as photosensitizers: Effect of the presence and position of the substituents in the in vivo photodynamic efficacy. Bioorgan. Med. Chem. Lett., 10: 1463-1466.
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  77. Pandey, R.K., 2000. Recent advances in photodynamic therapy. J. Porphyrins Phthalocyanines, 4: 368-373.
  78. Mettath, S., G. Zheng, T.J. Zielinski, M. Shibata, J.L. Alderfer, T.J. Dougherty and R.K. Pandey, 2000. Effect of substituents in directing the regioselective synthesis of novel pyridinium chlorins. Tetrahedron Lett., 41: 6289-6294.
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  79. Kozyrev, A.N., V. Suresh, S. Das, M.O. Senge, M. Shibata, T.J. Dougherty and R.K. Pandey, 2000. Syntheses and spectroscopic studies of novel chlorins with fused quinoxaline or benzimidazole ring systems and the related dimers with extended conjugation. Tetrahedron, 56: 3353-3364.
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  80. Garfinkel, M., A.B. Thomson, W. Ralston, T.L. Troy and T.A. Moore et al., 2000. Pharmacokinetics of indocyanine green and carotene-HPPH conjugate for detection of normal and tumor tissue using fluorescence, near-infrared continuous wave imaging. Photochem. Photobiol., 72: 94-102.
  81. Zheng, G., T.J. Dougherty and R.K. Pandey, 1999. A simple and short route for the preparation of divinyl chlorophyll derivatives. J. Org. Chem., 64: 3751-3754.
  82. Siegel, M.M. and R.K. Pandey, 1999. Mass spectrometric analyses of Photofrin oligomers. J. Mass Spectrom., 34: 661-669.
  83. Potter, W.R., B.W. Henderson, D.A. Bellnier, R.K. Pandey, L.A. Vaughan, K.R. Weishaupt and T.J. Dougherty, 1999. Parabolic quantitative structure-activity relationships and photodynamic therapy: Application of a three-compartment model with clearance to the in vivo quantitative structure-activity relationships of a congeneric series of pyropheophorbide derivatives used as photosensitizers for photodynamic therapy. Photochem. Photobiol., 70: 781-788.
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  84. Mettath, S., T.J. Dougherty and R.K. Pandey, 1999. Cycloaddition reaction on 3-vinylemeraldins: Formation of unexpected porphyrins with seven-membered exocyclic ring systems. Tetrahedron Lett., 40: 6171-6175.
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  85. Mettath, S., G. Li, T. Srikrishnan, R. Mehta, Z.D. Grossman, T.J. Dougherty and R.K. Pandey, 1999. Effect of substituents in directing the formation of benzochlorins and isobacteriochlorins in porphyrin and chlorin systems. Organ. Lett., 1: 1961-1964.
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  86. Li., G., B. Ma, J. Missert, Z.D. Grossman and R.K. Pandey, 1999. Synthesis of NS conjugates of highly specific mitochondrial diazapam binding inhibitor (DBI) receptor complexes. Heterocycles, 51: 2855-2860.
  87. Li, G., Q. Ma, B. Ma, Z.D. Grossman and R.K. Pandey, 1999. Efficient method for the preparation of bisaminoethabethiol (NS) ligands and their pyrrole conjugates. Heterocycles, 51: 2849-2854.
  88. Kozyrev, A.N., J.L. Alderfer, T.J. Dougherty and R.K. Pandey, 1999. Synthesis of mono- and di-(oxypyri) porphyrins: A new approach via diazomethane ring enlargement. Angew. Chem., 38: 126-128.
  89. Kozyrev, A.N., G. Zheng, M. Shibata, J.L. Alderfer, T.J. Dougherty and R.K. Pandey, 1999. Thermal dehydration of vic-dihydroxybacteriochlorins: A new approach for the synthesis of chlorin-chlorin and chlorin-porphyrin dimers with a partial orthogonal orientation. Organ. Lett., 1: 1193-1196.
  90. Zheng, G., J.L. Alderfer, M.O. Senge, M. Shibata, T.J. Dougherty and R.K. Pandey, 1998. Wittig reaction on chlorin: Formation of an unexpected novel porphyrin-spirochlorin dimmers. J. Org. Chem., 63: 6434-6435.
  91. Zheng, G., R.K. Pandey, T.P. Forsyth, A.N. Kozyrev, T.J. Dougherty and K.M. Smith, 1997. Syntheses and spectroscopic studies of some novel porphyrin-pyropheophorbide dimers and trimers with fixed distances. Tetrahedron Lett., 38: 2409-2412.
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  92. Senge, M.O., C.J. Medforth, T.P. Forsyth, D.A. Lee and M.M. Olmstead et al., 1997. Comparative analysis of the conformations of symmetrically and asymmetrically deca-and undeca-substituted porphyrins bearing meso alkyl or aryl groups. J. Inorg. Chem., 36: 1149-1163.
  93. Pandey, R.K., T. Tsuchida, S. Constantine, G. Zheng and C. Medforth et al., 1997. Synthesis, photophysical properties and in vivo photosensitizing activity of some novel bacteriochlorins. J. Med. Chem., 40: 3770-3779.
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  94. Pandey, R.K., M. Isaac, I. MacDonald, M.O. Senge, T.J. Dougherty and K.M. Smith, 1997. Pinacol rearrangement in vic-dihydro xychlorins and vic-dihydroxy bacteriochlorins: Effects of substituents at the pheripheral positions. J. Org. Chem., 62: 1463-1472.
  95. Kozyrev, A.N., G. Zheng, E. Lazarou, T.J. Dougherty, K.M. Smith and R.K. Pandey, 1997. Syntheses of emeraldin and purpurin-18 analogs as target-specific photosensitizers for photodynamic therapy. Tetrahedron Lett., 38: 3335-3338.
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  96. Henderson, B.W., D.A. Bellnier, W.R. Greco, A. Sharma and R.K. Pandey et al., 1997. An in vivo quantitative structure-activity relationship for a congeneric series of pyropheophorbide derivatives as photosensitizers for photodynamic therapy. Cancer Res., 57: 4000-4007.
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  97. Zhing, X., R.K. Pandey and K.M. Smith, 1996. Nucleoside adducts of vinylporphyrins and vinylchlorins. J. Chem. Soc. Perkin Trans., 1: 1607-1615.
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  98. Paolesse, R., R.K. Pandey, T.P. Forsyth, L. Jaquinod and K.R. Gerzevske et al., 1996. Stepwise syntheses of bisporphyrins, bischlorins and biscorrols and of porphyrin-chlorin and porphyrin-corrole heterodimers. J. Am. Chem. Soc., 118: 3869-3882.
  99. Pandey, R.K., S. Constantine, D.A. Goff, A.N. Kozyrev, J.T. Dougherty and K.M. Smith, 1996. Chlorophyll-a derivatives in photodynamic therapy: Effect of position of heptyl ether side-chains on in vivo photosensitizing activity. Bioorg. Med. Chem. Lett., 6: 105-110.
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  100. Pandey, R.K., N. Jagerovic, J.M. Ryan, T.J. Dougherty and K.M. Smith, 1996. Synthesis and preliminary in vivo photodynamic efficacy of benzoporphyrin derivatives from phylloerythrin and rhodoporphyrin XV methyl esters and aspartyl amides. Tetrahedron, 52: 5349-5362.
  101. Pandey, R.K., G. Zheng, T.J. Dougherty and K.M. Smith, 1996. Comparative in vivo photosensitizing activity of porphyrin and chlorin dimers linked with ether, carbon-carbon- and imide linkages. J. Mol. Recog., 9: 118-122.
  102. Pandey, R.K., A.B. Sumlin, W.R. Potter, D.A. Bellnier and B.W. Henderson et al., 1996. Structure and photodynamic efficacy among alkyl ether analogues of chlorophyll-a derivatives. Photochem. Photobiol., 63: 194-205.
  103. Kozyrev, A.N., R.K. Pandey, C.J. Medforth, G. Zheng, T.J. Dougherty and K.M. Smith, 1996. Synthesis and unusual spectroscopic properties of novel ketobacteriopurpurins. Tetrahedron Lett., 37: 747-750.
  104. Kozyrev, A.N., G. Zheng, T.J. Dougherty, K.M. Smith and R.K. Pandey, 1996. Syntheses of stable bacteriochlorophyll-a derivatives as potential photosensitizers for PDT. Tetrahedron Lett., 37: 6431-6434.
  105. Kozyrev, A., T.J. Dougherty and R.K. Pandey, 1996. Effect of substituents in OsO4 reaction of metallochlorins regioselective synthesis of isobacteriochlorins and bacteriochlorins. Tetrahedron Lett., 37: 3781-3784.
  106. Kalsbeck, W.A., D.E. Rpbertson, R.K. Pandey, K.M. Smith, P.L. Dutton and D.F. Bocian, 1996. Structural and electronic properties of the heme cofactors in a multi-heme synthetic cytochrome. Biochemistry, 35: 3429-3438.
  107. Jaquinod, L., M.O. Senge, R.K. Pandey, T.P. Forsyth and K.M. Smith, 1996. Planar Bischlorophyll Derivatives with a completely conjugated -system: Model compounds for the special pair in photosynthesis. Angew Chem., 35: 1840-1842.
  108. Jaquinod, L., D.J. Nurco, C.J. Medforth, R.K. Pandey and T.P. Forsyth et al., 1996. Synthesis and characterization of bis (chlorin)s from the mcmurry reaction of formylchlorins. Angew. Chem., 35: 1013-1016.
  109. Xuqin, J., R.K. Pandey and K.M. Smith, 1995. Synthesis of nucleoside adducts of Porphyrins and Chlorins. Tetrahedron Lett., 36: 365-368.
  110. Pandey, R.K., W.R. Potter, I. Meunier, A. Sumlin and K.M. Smith, 1995. Structure-Activity relationships among benzoporphyrin derivatives. Photochem. Photobiol., 62: 764-769.
  111. Pandey, R.K., S. Mettath, S. Gupta, T.J. Dougherty and K.M. Smith, 1995. Regioselective synthesis and some in vivo properties of Benzochlorin analogues prepared from methyl-9-deoxymesopyropheophorbide-a, Bioorg. Med. Chem. Lett., 5: 857-860.
  112. Kalsbeck, W.A., A. Ghosh, R.K. Pandey, K.M. Smith and D.F. Bocian, 1995. Determination of vinyl stretching frequency in protoporphyrins: Implications for cofactor-protein interactions in heme proteins. J. Am. Chem. Soc., 117: 10959-10968.
  113. Forsyth, T.P., D.J. Nurco, R.K. Pandey and K.M. Smith, 1995. Synthesis and structure of a 5, 15-bis(4-pyridyl)purpurin. Tetrahedron Lett., 36: 9093-9096.
  114. Pandey, R.K., S.H. Leung, T. Forsyth and K.M. Smith, 1994. A novel biliverdin with an inverted pyrrole subunit. Tetrahedron Lett., 48: 8995-8998.
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  115. Pandey, R.K., S.H. Leung and K.M. Smith, 1994. Total synthesis of new porphyrins isolated from the coral sea Demosponfe corallistes sp. Tetrahedron Lett., 35: 8093-8096.
  116. Pandey, R.K., N. Jagerovic, T.J. Dougherty and K.M. Smith, 1994. Synthetic approaches to long wavelength photosensitizers for photodynamic therapy, Photodynamic Therapy of Cancer II. Biomed. Opt. Eur., 2325: 2-12.
  117. Pandey, R.K., H. Zhou, K. Gerzevske and K.M. Smith, 1994. An efficient method for the synthesis of symmetrical and unsymmetrical biliverdins. J. Chem. Soc. Perkin Trans., 1: 971-977.
  118. Pandey, R.K., F.Y. Shiau, T.J. Dougherty and K.M. Smith, 1994. Synthesis of new bacteriochlorins and their anti-cancer activity. Bioorg. Med. Chem. Lett., 4: 1263-1267.
  119. Meunier, I., R.K. Pandey, M.O. Senge, T.J. Dougherty and K.M. Smith, 1994. Benzoporphyrin derivatives: Synthesis, structure and preliminary biological activity. J. Chem. Soc. Perkin Trans., 1: 961-969.
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  120. Gerzevske, K., R.K. Pandey and K.M. Smith, 1994. Azachlorins and azabacteriochlorins. Heterocycles, 39: 439-443.
  121. Santucci, R., F. Ascoli, G.N. LaMar, R.K. Pandey and K.M. Smith, 1993. Reconstitution of horse heart myoglobin with hemins methylated at 6- or 7-positions: a circular dichroism study. Biochim. Biophys. Acta, 1164: 133-137.
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  122. Ramaprasad, S., Y.H. Liu, R.K. Pandey, F.Y. Shiau and K.M. Smith, 1993. In-vivo NMR studies of deuterium-labeled photosensitizers in mice tumor model. Proc. SPIE., 1881: 325-333.
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  123. Ramaprasad, S., R.K. Pandey, R.M. Hawk and Y.H. Liu, 1993. Responses to photodynamic therapy in a murine tumor model-31P NMR and water proton relaxation studies. J. Emviron. Sci. Health, 28: 2347-2357.
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  124. Pandey, R.K., N. Jagerovic, J. Ryan, T.J. Dougherty and K.M. Smith, 1993. Efficient syntheses of new classes of regiochemically pure benzoporphyrin derivatives. Bioorg. Med. Chem. Lett., 3: 2615-2618.
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  125. Kessel, D., K.M. Smith, R.K. Pandey, F.Y. Shiau and B. Henderson, 1993. Photosensitization with bacteriochlorins. Photochem. Photobiol., 58: 200-203.
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  126. Bellnier, D.A., B.W. Henderson, R.K. Pandey, W.R. Potter and T.J. Dougherty, 1993. Murine pharmacokinetics and antitumor efficacy of the photodynamic sensitizer 2-[1-hexyloxyethyl]-2-devinyl pyropheophorbide-a (HPPH). J. Photochem. Photobiol. B. Biol., 20: 55-61.
  127. Meunier, I., R.K. Pandey, M. Walker, M.O. Senge, T.J. Dougherty and K.M. Smith, 1992. New Syntheses of benzoporphyrin derivatives and analogues for use in photodynamic therapy. Bioorg Med. Chem. Lett., 2: 1575-1580.
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  128. Pandey, R.K., K.M. Smith and A.H. Jackson, 1991. Ring syntheses of the four N-methylprotoporphyrin isomers and of related N-methyl andN, N-dimethylporphyrins. J. Chem. Soc. Perkin Trans., 1: 1211-1220.
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  129. Pandey, R.K., F.Y. Shiau, T.J. Dougherty and K.M. Smith, 1991. Regioselective syntheses of ether linked porphyrin dimers and trimers related to Photofrin II. Tetrahedron, 47: 9571-9584.
  130. Pandey, R.K., D.A. Bellnier, K.M. Smith and T.J. Dougherty, 1991. Porphyrin and chlorin derivatives as potential photosensitizers in photodynamic therapy. Photochem. Photobiol., 53: 65-72.
  131. Lee, K.B., G.N. La Mar, R.K. Pandey, I.N. Rezzano and K.E. Mansfield et al., 1991. Proton NMR study of the role of heme carboxylate side chains in modulating heme pocket structure and the mechanism of reconstitution of cytochrome b5. Biochemistry, 30: 1878-1887.
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  132. Lee, K.B., E. Jun, G.N. La Mar, I.N. Rezzano and R.K. Pandey et al., 1991. Influence of heme vinyl-and carboxylate-protein contacts on structure and redox properties of bovine cytochrome b5. J. Am. Chem. Soc., 113: 3576-3583.
  133. Shiau, F.Y., R.K. Pandey, S. Ramprasad, T.J. Dougherty and K.M. Smith, 1990. The isomeric mono-acetyl-mono-(1-hydroxyethyl)-deuteroporphyrins: Synthesis, characterization and use for syntheses of regioselectively methyl- and vinyl-deuterated hemins. J. Org. Chem., 55: 2190-2195.
  134. Pandey, R.K., M.M. Siegel, R. Tsao, J.H. McReynolds and T.J. Dougherty, 1990. Fast atom bombardment mass spectral analyses of Photofrin II® and its synthetic analogs. Biol. Mass Spectrom., 19: 405-414.
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  135. Pandey, R.K., K.M. Smith and T.J. Dougherty, 1990. Synthesis and photo-sensitizing activity of porphyrin dimers in photodynamic therapy. J. Med. Chem., 33: 2032-2038.
  136. Pandey, R.K., F.Y. Shiau, C.J. Medforth, T.J. Dougherty and K.M. Smith, 1990. Syntheses, stability and tumorcidal activity of porphyrin dimers and trimers with ether linkages. Tetrahedron Lett., 31: 7399-7402.
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  137. Pandey, R.K., F.Y. Shiau, C.J. Medforth, T.J. Dougherty and K.M. Smith, 1990. Efficient synthesis of porphyrin dimers with carbon-carbon linkages. Tetrahedron Lett., 31: 789-792.
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  138. Ho, Y.K., R.K. Pandey, J. Missert and T.J. Dougherty, 1990. Some components of the tumor-localizing fraction of hematoporphyrin derivative. Photochem. Photobiol., 52: 1085-1089.
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  139. Hauksson, J.B., G.N.L. Mar, R.K. Pandey, I.N. Rezzano and K.M. Smith, 1990. NMR study of heme pocket polarity/ hydrophobicity of myoglobin using polypropionate-substituted hemins. J. Am. Chem. Soc., 112: 8315-8323.
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  140. Hauksson, J.B., G.N. La Mar, U. Pande, R.K. Pandey, D.W. Parish and K.M. Smith, 1990. Nmr study of the mechanism os assembly and equilibrium heme orientation of sperm whale myoglobin reconstituted with protohemin type-isomers. Biochim. Biophys. Acta, 1041: 186-194.
  141. Peyton, D.H., G.N. La Mar, U. Pande, F. Ascoli and K.M. Smith et al., 1989. Proton NMR study of the molecular and electronic structure of the heme cavity in Aplysia cyano metmyoglobin. Biochemistry, 28: 4880-4886.
    PubMed  |  
  142. Pandey, R.K., K.M. Smith and T.J. Dougherty, 1989. Chemistry of porphyrin II and some new photosensitizers. Proc. SPIE., 1065: 164-174.
  143. Pandey, R.K. and T.J. Dougherty, 1989. Syntheses and photosensitizing activity of porphyrins joined with ester linkages. Cancer Res., 49: 2042-2047.
  144. McGourty, J.L., G.N. La Mar, K.M. Smith, F. Ascoli, E. Chiancone, R.K. Pandey and J.P. Singh, 1989. Nuclear‐magnetic‐resonance investigation of the cooperative homodimeric hemoglobin from the mollusc Scapharca inaequivalvis. Eur. J. Biochem., 184: 53-61.
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  145. La Mar, G.N., U. Pande, R.K. Pandey and K.M. Smith, 1989. Proton nuclear magnetic resonance investigation of the mechanism of the reconstitution of 15 myoglobin that leads to metastable heme orientational disorder. J. Am. Chem Soc., 111: 485-491.
  146. Jackson, A.H., W. Lertwanawantana, R.K. Pandey and K.R.N. Rao, 1989. Mechanism of the acid-catalysed rearrangement of α-free pyrromethanes. J. Chem. Soc. Perkin Trans., 1: 374-375.
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  147. Geneske, G., R.K. Pandey, K.M. Snow and K. Smith, 1989. Mercuration reactions on pyrrole and substituted pyrrole. J. Org. Chem., 45: 4801-4809.
  148. Bellnier, D.A., Y.K. Ho, R.K. Pandey, J.R. Missert and T.J. Dougherty, 1989. Pharmacokinetics of the tumor - localizing component of hematoporphyrin derivative in mice. Photochem. Photobiol., 50: 221-228.
  149. Pandey, R.K., T.J. Dougherty and K.M. Smith, 1988. Syntheses of hematoporphyrin dimers and trimers with ether linkages. Tetrahedron Lett., 29: 4657-4660.
  150. Pandey, R.K. and T.J. Dougherty, 1988. Synthesis and photosensitizing activity of adi-porphyrin ether. Photochem. Photobiol., 47: 768-777.
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  151. LaMar, G.N., T. Jue, K. Nagai, K.M. Smith and Y. Yamamoto et al., 1988. Proton NMR heme resonance assignments by selective deuteration in low spin complexes of ferric hemoglobin A. Biochem. Biophys. Acta, 952: 131-141.
  152. Constanntinidis, I., J.D. Satterlee, R.K. Pandey, H.K. Leung and K.M. Smith, 1988. Assignment of selected hyperfine proton NMR resonances in the met form of the Glycera dibranchiata monomer hemoglobin and comparisons with sperm whale metmyoglobin. Biochemistry, 27: 3069-3076.
  153. Chatfield, M.J., G.N. LaMar, K.M. Smith, H.K. Leung and R.K. Pandey, 1988. Identification of the altered pyrrole in the isomeric sulfmyoglobin: Hyperfine shift patterns as indicators of ring saturation in ferric chlorins. Biochemistry, 27: 1500-1507.
  154. Smith, K.M., E.M. Fujinari, R.K. Pandey and H.D. Tabba, 1986. Total syntheses of derivatives of protoporphyrin IX regioselectively labeled with carbon-13 in the methyls. J. Org. Chem., 51: 4667-4676.
  155. Smith, K.M. and R.K. Pandey, 1986. Total syntheses of N-Methyl protoporphyrin -IX. Tetrahedron Lett., 27: 2717-2720.
  156. Smith, K.M. and R.K. Pandey, 1986. Cyclization of terminally substituted a, c-Biladiene salts. Synthetic Commun., 16: 929-932.
  157. Pande, U., G.N. La Mar, J.T.J. Lecomte, F. Ascoli and A.N. Brunori et al., 1986. NMR studies of the molecular and electronic structure of the heme cavity of Aplysia Metmyglobin. Biochemistry, 25: 5638-5646.
  158. Kitagawa, R.K. Pandey, Hiu and K.M. Smith, 1986. Characterization of low frequency Resonance Raman bands of metalloporphyrins. Observation of isotope shift and normal co-ordinated treatment. J. Mol. Res., 146: 329-347.
  159. Smith, K.M. and R.K. Pandey, 1985. Syntheses of porphyrins with permetuated propionic esters. J. Heterocyclic Chem., 22: 1041-1046.
  160. Levy, M.J., G.N. La Mar, T. Jue, K.M. Smith and R.K. Pandey et al., 1985. Proton NMR study of yellow fin tuna myglobin in whole muscle and solution. J. Biol. Chem., 260: 13694-13698.
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  161. La Mar, G.N., Y. Yamamoto, T. Jue, K.M. Smith and R.K. Pandey, 1985. 1H NMR characterization of metastable and equilibrium heme orientational heterogeneity in reconstituted and native human hemoglobin. Biochemistry, 24: 3826-3831.
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  162. Jackson, A.H., R.K. Pandey and K.R.N. Rao, 1985. Reactions on solid supports part II: A convenient method for synthesis of pyrromethanes using a montmorillonite clay as catalyst. Tetrahedron Lett., 26: 793-796.
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  163. Tomoro, M.L., R.B. Frydman, B. Frydman, R.K. Pandey and K.M. Smith, 1984. The specificity of biliverdine reductase: A study with different biliverdine types. Biochem. Biophys. Acta, 791: 350-356.
  164. Tomoro, M.L., R.B. Frydman, B. Frydman, R.K. Pandey and K.M. Smith, 1984. The oxidation of hemin by microsomal Heme Oxygenase. Structural requirement for the retention of substrate activity. Biochem. Biophys. Acta, 791: 342-349.
  165. Smith, K.M. and R.K. Pandey, 1984. New synthesis of biliverdine dimethyl ester and two related mono ethyl mono vinyl isomers. Tetrahedron, 40: 1749-1754.
  166. Smith, K.M., Z. Martynenko, R.K. Pandey and H.D. Tabba, 1983. Neighbouring group participation in the pyrrole series. J. Org. Chem., 48: 4296-4302.
  167. Smith, K.M. and R.K. Pandey, 1983. New efficient total syntheses of derivatives of protoporphyrin IX, bearing deuteriated methyl groups. J. Heterocyclic Chem., 20: 1383-1388.
  168. Pandey, R.K., R. Sharma, V. Bhasin and B.C. Joshi, 1983. Synthesis of 2 N- Hexyl-5- methyl-3,4 - 6,7- dibenzomorphan from 4-methyl quinoline. J. Inst. Chemists, 55: 11-12.
  169. Bahuguna, R.P., M.P. Dobhal, Y. Joshi, R.K. Pandey and B.C. Joshi, 1982. Spectral studies of some substituted arylthio benzo(f)quinolines. J. Heterocyclic Chem., 19: 875-878.
  170. Sharma, R., V.K. Bhasin, V.K. Goyal, R.K. Pandey and B.C. Joshi, 1981. Syntheses of 3,4-benzo-6,7-naphthomorphan derivatives. J. Ind. Chem. Soc., 58: 602-604.
  171. Sharma, R., R.K. Pandey and B.C. Joshi, 1981. Reduction of 2-Chloro-6-methoxy-4-methyl-quinoline. Arch. Sci. Geneva, 34: 89-91.
  172. Pandey, R.K., R. Sharma and B.C. Joshi, 1981. Synthesis and pharmacological studies of 1-chloromethyl-4-methoxy naphthalene. J. Inst. Chem., 53: 184-186.
  173. Pandey, R.K., R. Sharma and B.C. Joshi, 1981. A noval route for the synthesis of keto benzoic acid, auxin transport inhibitor. Rev. Roumaine de Chimie., 25: 875-878.
  174. Pandey, R.K., V.K. Bhasin and B.C. Joshi, 1977. Thin layer chromatography of some 3,4-6,7-dibenzomorphans. Acta Cincia Indica, 3: 1-4.
  175. Pandey, R.K., A. Surana and B.C. Joshi, 1976. Reduction of 2-Chloro-6-methoxy-4-methyl quinoline. Arch. Sci. Geneva, 29: 199-201.
  176. Pandey, R.K. and B.C. Joshi, 1976. Syntheses of 2,5-Dimethyl and 2-ethyl, 5-methyl-3,4-benzo-6,7- naphthomorphan. Bull. Acad. Sci. Ser. Sci. Chim., 24: 13-16.
  177. Goyal, V.K., R.K. Pandey and B.C. Joshi, 1976. Synthesis of 4 - Picolyl magnesium bromide and its reactions. J. Ind. Chem. Soc., 54: 538-540.
  178. Goyal, V.K., R.K. Pandey and B.C. Joshi, 1976. Syntheses of 2-Propyl and 2-phenathyl-5-methyl-3,4- 6,7- dibenzomorphans. J. Ind. Chem. Soc., 53: 822-824.
  179. Pandey, R.K., P. Pandey and B.C. Joshi, 1975. Synthesis of 2'-Hydroxy-2, 5-dimethyl-3,4-6.7-dibenzomorphan. Bull. Acad. Sci. Ser. Sci. Chim., 23: 487-489.
  180. Pandey, R.K. and B.C. Joshi, 1975. Synthesis of 2,5- dimethyl 3,4-6,7- dibenzomorphan. Bull. Acad. Sci. Ser. Sci. Chim., 23: 386-389.