作者:Takeshi Takeda、Teruaki Mukaiyama
DOI:10.1246/cl.1980.163
日期:1980.2.5
An asymmetric total synthesis of indolmycin was achieved via a key intermediate, α-indolmycenic acid ester. The ester was obtained by oxygenation of methyl (S)-3-(3-indolyl)butanoate which was prepared by asymmetric synthesis utilizing (2R,3S)-3,4-dimethyl-2-phenylperhydro-l,4-oxazepine-5,7-dione. (2S,3R)-N-[2-Hydroxy-3-(3-indolyl)-butanoyl]-N′-methylthiourea prepared from α-indolmycenic acid ester
吲哚霉素的不对称全合成是通过关键中间体 α-吲哚霉素酸酯实现的。该酯是通过使用 (2R,3S)-3,4-二甲基-2-苯基全氢-1,4-氧氮杂-5 不对称合成制备的 (S)-3-(3-吲哚基) 丁酸甲酯氧化获得的,7-二酮。(2S,3R)-N-[2-Hydroxy-3-(3-indolyl)-butanoyl]-N'-methylthiourea 由 α-indolmycenicate 制备,用 2-chlorobenzoxazolium 盐处理得到光学纯度为 93% 的吲哚霉素.