Simple, stereocontrolled synthesis of 1β-methylcarbapenem antibiotics from 3()-hydroxybutyric acid
作者:Takamasa Iimori、Masakatsu Shibasaki
DOI:10.1016/s0040-4039(00)84472-x
日期:1986.1
A simple, stereocontrolled synthesis of 1β-methylcarbapenem antibiotics has been accomplished. The synthesis involves stereoselective aldol-type condensation of vinyloxyborane derived from -phenyl 3()-hydroxybutanethioate with -3-trimethylsilyl-2-propynylidenebenzylamine, regiocontrolled hydroesterification of terminal acetylene and stereoselective 1,4-reduction of the α,β-unsaturated ester as key
1β-甲基卡巴培南抗生素的简单,立体控制的合成已完成。合成涉及衍生自-苯基3()-羟基丁烷硫酸酯的乙烯基氧基硼烷与-3-三甲基甲硅烷基-2-亚丙基苄基胺的立体选择性羟醛缩合,末端乙炔的区域控制加氢酯化以及α,β-不饱和酯的立体选择性1,4-还原关键步骤。