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出 处:《中国医药工业杂志》2006年第6期361-363,共3页Chinese Journal of Pharmaceuticals
摘 要:反式-4-羟基-L-脯氨酸经酯化、保护、还原、SN2取代、Mitsunobu反应、醇解得到(2S,4S)-1-叔丁氧羰基-2- (N-叔丁氧羰基氨磺酰胺基)甲基-4-巯基吡咯烷(7),收率50.8%。7与(1R,5S,6S)-6-[(1R)-1-羟乙基]-2-二苯氧磷酰氧基-1-甲基-1-碳代-2-青霉烯-3-羧酸对硝基苄酯(8)缩合、脱保护,得到多尼培南,收率50.5%(以7计)。总收率接近26%(以反式-4-羟基-L-脯氨酸计)。Doripenem was synthesized by the condensation of (2S,4S) - 1-t-butoxycarbonyl-2- (N-t-butoxycarbonyl- sulfamoylamido) methyl-4-mercaptopyrrolidine (7) and (1R,5S,6S) -6- [ (1R) -1-hydroxyethyl]-2-diphenoxyphosphonyloxy- 1-methyl- 1-carba-2-penem-3-carboxylic acid p-nitrobenzylester (8) , followed by deprotection with a yield of 50.5 %. Compound 7 was obtained from trans-4-hydroxy-L-proline by esterificatiom, protection, reduction, SN2 substitution, Mitsunobu reaction and alcoholysis with a yield of 50.8 %. The overall yield was about 26 % (based on trans-4-hydroxy-L-proline).
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