申请人:Merck & Co., Inc.
公开号:US03950359A1
公开(公告)日:1976-04-13
(.+-.)-Prostaglandin E.sub.1 is totally synthesized with a high degree of stereoselectivity and in good yield at the various steps from 6-methoxy-3-indanol by a sequence of reactions proceeding through 6-methoxy-3-indeneheptanoic acid ester, 2,6-dioxo-4,5,6,7-tetrahydro-7-methyl-3-indanheptanoic acid ester 2-cyclic ethylene acetal, cis-3,4,5,7a-tetrahydro-7-methyl-2-oxoindanheptanoic acid ester, trans-trans 3-acetyl-2-(2-carboxy-ethyl)-5-oxocyclopentane heptanoic acid ester 5-cyclic-ethylene acetal, 3-acetoxy-2-formyl-5-oxocyclopentaneheptanoic acid ester 5-cyclic ethylene acetal, and 15-dehydro (.+-.)-prostaglandin E.sub.1. The end compound has the biological activity of naturally occurring prostaglandin E.sub.1.
(.+-.)-前列腺素E.sub.1是通过一系列反应从6-甲氧基-3-茚醇经过高度立体选择性和良好产率的合成步骤,包括6-甲氧基-3-茚烯庚酸酯、2,6-二氧杂-4,5,6,7-四氢-7-甲基-3-茚烷庚酸酯2-环氧乙烷缩醛、顺式-3,4,5,7a-四氢-7-甲基-2-氧代茚烷庚酸酯、反-反-3-乙酰基-2-(2-羧乙基)-5-氧代环戊烷庚酸酯5-环氧乙烷缩醛、3-乙酰氧基-2-甲酰基-5-氧代环戊烷庚酸酯5-环氧乙烷缩醛和15-去氢(.+-.)-前列腺素E.sub.1合成而成。最终化合物具有天然前列腺素E.sub.1的生物活性。