biblio

Filters: Author is Kalkote, Uttam R.  [Clear All Filters]
2005
S. P. Chavan, Chittiboyina, A. G., Ravindranathan, T., Kamat, S. K., and Kalkote, U. R., “Diastereoselective amidoalkylation of (3S,7aR)-6-benzyl-7-hydroxy-3-phenyltetra-hydro-5H-imidazo[1,5-c][1, 3]thiazol-5-one : a short and highly efficient synthesis of (+)-biotin”, Journal of Organic Chemistry, vol. 70, no. 5, pp. 1901-1903, 2005.
S. P. Chavan, Praveen, C., Sharma, P., and Kalkote, U. R., “Efficient stereoselective synthesis of (2S,4S,5R)-(-)- and (2R,4R,5S)-(+)-bulgecinine”, Tetrahedron Letters, vol. 46, no. 3, pp. 439-441, 2005.
U. R. Kalkote, Panchgalle, S. R., Mahakal, K. K., Choudhary, S. M., and Chavan, S. R., “New method for the preparation of 1,2-benzisoxazole-3-carboxaldehyde”, Journal of Chemical Research, no. 2, pp. 99-100, 2005.
S. M. Kasture, Varma, R., Kalkote, U. R., Nene, S., and Kulkarni, B. D., “Novel enzymatic route for kinetic resolution of (+/-)1,4-benzodioxan-2-carboxylic acid”, Biochemical Engineering Journal, vol. 27, no. 1, pp. 66-71, 2005.
S. P. Chavan, Kharul, R. K., Kamat, S. K., Kalkote, U. R., and Kale, R. R., “Simple, concise, stereocontrolled synthesis of (8E,10Z)-pentadecadien-1-ol acetate”, Synthetic Communications, vol. 35, no. 7, pp. 987-994, 2005.
2006
U. R. Kalkote, Purude, A. N., Puranik, V. G., and Gurjar, M. K., “Convenient chemoenzymatic synthesis of (1S,7aS)-1-hydroxy-5-oxo-4-(2 `-carboxyethyl)-7a-methyltetrahydro-indane - a key intermediate of steroids”, Journal of Molecular Catalysis B-Enzymatic, vol. 40, no. 1-2, pp. 38-43, 2006.
S. P. Chavan, Thakkar, M., Jogdand, G. F., and Kalkote, U. R., “First enantiospecific synthesis of (-)-parvifoline and (-)-curcuquinone”, Journal of Organic Chemistry, vol. 71, no. 23, pp. 8986-8988, 2006.
S. P. Chavan, Sharma, P., Sivappa, R., and Kalkote, U. R., “Ring closing metathesis approach to the indole alkaloid mitralactonine”, Tetrahedron Letters, vol. 47, no. 52, pp. 9301-9303, 2006.
2007
S. P. Chavan, Khobragade, D. A., Pathak, A. B., and Kalkote, U. R., “Convenient formal synthesis of (+/-)-paroxetine”, Synthetic Communications, vol. 37, no. 18, pp. 3143-3149, 2007.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., “Efficient and practical total synthesis of (+/-)-alpha-cuparenone”, Synthesis-Stuttgart , no. 24, pp. 3827-3830, 2007.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., “Facile total synthesis of (+/-)-alpha-cuparenone employing diallylation and RCM as key steps”, Tetrahedron Letter, vol. 48, no. 6, pp. 965-966, 2007.
S. P. Chavan, Thakkar, M., and Kalkote, U. R., “First enantiospecific synthesis of (-)-heritol: absolute configuration determination”, Tetrahedron Letters, vol. 48, no. 4, pp. 643-646, 2007.
S. P. Chavan, Sharma, P., Sivappa, R., and Kalkote, U. R., “Practical and facile approach towards indole alkaloids: (-)-mitralactonine”, Synlett, no. 1, pp. 79-82, 2007.
S. P. Chavan, Pathak, A. B., and Kalkote, U. R., “Practical formal synthesis of camptothecin”, Tetrahedron Letter, vol. 48, no. 37, pp. 6561-6563, 2007.
S. P. Chavan, Khobragade, D. A., Thakkar, M., and Kalkote, U. R., “Practical synthesis of (+/-)-venlafaxine”, Synthetic Communications, vol. 37, no. 22-24, pp. 3901-3906, 2007.
S. P. Chavan, Pathak, A. B., Pandey, A., and Kalkote, U. R., “Short and efficient synthesis of rubrolide E”, Synthetic Communications, vol. 37, no. 22-24, pp. 4253-4263, 2007.
S. P. Chavan, Pathak, A. B., and Kalkote, U. R., “Total synthesis of (+)-camptothecin via an intramolecular palladium-catalyzed cyclization strategy”, Synlett, no. 17, pp. 2635-2638, 2007.
S. P. Chavan, Pathak, A. B., Dhawane, A. N., and Kalkote, U. R., “Total synthesis of pulchellalactam via an RCM strategy”, Synthetic Communications, vol. 37, no. 7-9, pp. 1503-1510, 2007.
2008
R. Varma, Kasture, S. M., Nene, S., and Kalkote, U. R., “Lipases catalyzed enantioselective hydrolysis of (R,S)-methyl 1,4-benzodioxan-2-carboxylate intermediate for (S)-doxazosin mesylate”, World Journal of Microbiology & Biotechnology, vol. 24, no. 4, pp. 577-579, 2008.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., “Tandem aza-michael-condensation-aldol cyclization reaction: approach to the construction of DE synthon of (+/-)-camptothecin”, Synlett, no. 18, pp. 2781-2784, 2008.
2009
S. P. Panchgalle, Gore, R. G., Chavan, S. P., and Kalkote, U. R., “Organocatalytic enantioselective synthesis of beta-blockers: (S)-propranolol and (S)-naftopidil”, Tetrahedron-Asymmetry, vol. 20, no. 15, pp. 1767-1770, 2009.
M. K. Gurjar, Reddy, C. Nageswar, Kalkote, U. R., and Chorghade, M. S., “Studies toward the total synthesis of carba analogue of motif C OF M. TB cell wall AG complex”, Heterocycles, vol. 77, no. 2, pp. 909-925, 2009.
2010
S. P. Panchgalle, Jogdand, G. F., Chavan, S. P., and Kalkote, U. R., “Enantioselective synthesis of (R)-(+)-alpha-lipoic acid via proline-catalyzed sequential alpha-aminoxylation and HWE olefination of aldehyde”, Tetrahedron Letters, vol. 51, no. 27, pp. 3587-3589, 2010.
S. P. Chavan, Dhawane, A. N., and Kalkote, U. R., “Formal synthesis of (+/-)-camptothecin via tricyclic lactone as key synthon”, Tetrahedron Letters, vol. 51, no. 23, pp. 3099-3101, 2010.
S. P. Panchgalle, Bidwai, H. B., Chavan, S. P., and Kalkote, U. R., “Organocatalytic asymmetric synthesis of (-)-delta-coniceine based on sequential proline-catalyzed asymmetric alpha-amination-HWE olefination”, Tetrahedron-Asymmetry, vol. 21, no. 19, pp. 2399-2401, 2010.
2011
S. P. Chavan, Dumare, N. B., Harale, K. R., and Kalkote, U. R., “Asymmetric total synthesis of (2S,3S)-3-hydroxypipecolic acid”, Tetrahedron Letters, vol. 52, no. 3, pp. 404-406, 2011.
S. P. Chavan, Harale, K. R., Dumare, N. B., and Kalkote, U. R., “Convenient formal synthesis of (2S,3S)-3-hydroxy pipecolic acid”, Tetrahedron-Asymmetry, vol. 22, no. 5, pp. 587-590, 2011.
S. P. Panchgalle, Kunte, S. S., Chavan, S. P., and Kalkote, U. R., “Exploration of L-proline-catalyzed -aminoxylation of aldehyde to (S)-guaifenesin-related drug molecules”, Synthetic Communications, vol. 41, no. 13, p. PII 937137930, 2011.
2012
S. P. Chavan, Garai, S., and Kalkote, U. R., “Highly diastereoselective total synthesis of (+/-)-heritonin and (+/-)-heritol”, Tetrahedron, vol. 68, no. 40, pp. 8509-8514, 2012.
2015
A. N. Purude, Pawar, K. P., Patil, N. B., Kalkote, U. R., and Chavan, S. P., “Total synthesis of (R)-lipoic acid and (S)-lipoic acid via an Mn (III)-salen-catalyzed oxidative kinetic resolution”, Tetrahedron-Asymmetry, vol. 26, no. 5-6, pp. 281-287, 2015.