专利号:US-2022267266-A1 优先权日:2019-07-09 标 题 :Improved, cost effective process for synthesis of vitamin d3 and its analogue calcifediol from ergosterol 发明人:DATLA ANUPAMA; NAGRE PRASHANT; TAMORE JAGDISH; PRABHU MANOJKUMAR SADANAND; KADAM SACHIN VASANT 权利人:FERMENTA BIOTECH LTD 摘要:Disclosed herein is an improved and efficient process for synthesis of vitamin D3 and its analogue Calcifediol from Ergosterol. Particularly, the present invention discloses the synthesis of key intermediate 3β-tert-Butyldimethylsilyloxy-22-hydroxy-23,24-bisnorchola-5,7-diene (5), and novel intermediate β-tert-Butyldimethylsilyloxy-22-iodo-23,24-bisnorchola-5,7-diene (9) by a simple and cost effective process. The industrially viable processes for preparation of said intermediate(s) results in providing provitamins with various side chains and the desired products in high yield.
专利号:WO-03031376-A1 优先权日:2001-10-12 标 题 :Solid phase synthesis of substituted 1,5-benzodiazepine-2-one and 1,5-benzothiazepine-2-one 发明人:MORTON GEORGE C; SALVINO JOSEPH M; LABAUDINIERE RICHARD F; HERPIN TIMOTHY F 权利人:AVENTIS PHARMA INC; MORTON GEORGE C; SALVINO JOSEPH M; LABAUDINIERE RICHARD F; HERPIN TIMOTHY F 摘要:A solid phase synthetic method for making substituted 1,5-benzodiazepine-2-one or 1,5-benzothiazepine-2-one. The method is useful for synthesis of large numbers of compounds through automated parallel synthesis or combinatorial library generation and is thus important to rapid discovery or new therapeutic agents containing the base structure of 1,5-benzodiazepine-2-one or 1,5-benzothiazepine-2-one.
专利号:US-4151205-A 优先权日:1975-01-27 标题 :Synthesis of vitamin E 发明人:COHEN NOAL; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.
专利号:US-4051153-A 优先权日:1975-01-27 标题 :Intermediates in the synthesis of vitamin E 发明人:COHEN NOAL; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:A synthesis of vitamin E in racemic or optically active forms from methacryolein or beta-hydroxyisobutyric acid including intermediates in this synthesis.
专利号:US-5554753-A 优先权日:1993-08-25 标 题:Catalytic enantioselective synthesis of α-amino acid derivatives by phase-transfer catalysis 发明人:O'DONNELL MARTIN J; WU SHENGDE; ESIKOVA IRENA; MI AIQIAO 权利人:INDIANA UNIVERSITY FOUNDATION 摘要:Described are improved processes for the enantioselective synthesis of α-amino acids which involve combinations of solvents, highly-mixed and low-temperature reaction conditions, and novel catalysts. Also described are novel catalysts and precursors to α-amino acid derivatives.
专利号:US-9879043-B1 优先权日:2013-06-06 标 题:Synthesis of non-natural cofactor analogs of S-adenosyl-L-methionine using methionine adenosyltransferase 发明人:THORSON JON; HUBER TYLER; ZHANG JIANJUN; Singh Shanteri 权利人:UNIV KENTUCKY RES FOUND 摘要:The present disclosure relates to the synthesis of non-natural analogs of S-adenosyl-L-methionine (SAM) and/or of Se-adenosyl-L-methionine (SeAM) by reacting a methionine analog and adenosine triphosphate (ATP) in the presence of at least one methionine adenosyltransferase (MAT), and to use thereof with downstream SAM and/or SeAM utilizing enzymes. The non-natural analogs of SAM and/or SeAM have the general formula: n nwhere X is S or Se, and R 1 is an alkyl group.
摘要:Kantchev, E. A. B.; Organ, M. G., Science of Synthesis, (2009) 48, 63. 摘要:Kantchev, E. A. B.; Organ, M. G., Science of Synthesis, (2009) 48, 87. 摘要:Yi, C. S., Science of Synthesis: Catalytic Transformations via CH Activation, (2015) 1, 230. 摘要:Paterson, A. J.; Beke-Somfai, T.; Kann, N., Science of Synthesis, (2021) , 305. 摘要:Zhang, F.-L.; Wang, Y.-F., Science of Synthesis, (2021) , 398.