Diastereoselective synthesis of methyl α-kedarosaminide, a carbohydrate moiety of the enediyne antitumor antibiotic kedarcidin chromophore
作者:Tatjana Vuljanic、Jan Kihlberg、Peter Somfai
DOI:10.1016/0040-4039(94)85046-1
日期:1994.9
Methyl α-kedarosaminide (9), a carbohydrate moiety of the enediyne antitumor antibiotic kedarcidin chromophore, was synthesised from d-threonine. Stereoselective reduction of the allyl ketone 5 derived from d-threonine was a key step in the synthesis, which was achieved by using Me4NBH(OAc)3 for intramolecular hydride delivery.
由d-苏氨酸合成了烯二炔抗肿瘤抗生素kedarcidin发色团的碳水化合物部分-甲基α-kedarosaminide(9)。立体选择性还原衍生自苏氨酸的烯丙基酮5是合成中的关键步骤,这是通过使用Me 4 NBH(OAc)3进行分子内氢化物传递来实现的。