作者:Andrzej Robert Daniewski、Jarosław Kiegiel
DOI:10.1055/s-1987-28051
日期:——
(2S,3S)-2-(2-Bromoethyl)-3-ethenyl-2-methylcyclopentanone 2,2-dimethyl-1, 3-propanediyl acetal (Synthon C) is a chiral synthon for the total synthesis of estrone. Synthon C is prepared from 3a-hydroxy-7a-methyloctahydroindeno-1, 5-dione by a multistep sequence, the key steps of which consist of the regioselective Baeyer-Villiger oxidation of the starting dione and the stereospecific catalytic hydrogenation of an intermediate unsaturated bicyclic lactone.
(2S,3S)-2-(2-溴乙基)-3-乙烯基-2-甲基环戊酮 2,2-二甲基-1,3-丙二醇缩醛(Synthon C)是一种用于雌酮全合成的手性合成物。Synthon C由3a-羟基-7a-甲基八氢茚并-1,5-二酮通过多步反应制备,其中关键步骤包括对起始二酮进行区域选择性拜耳-维利格氧化,以及对中间体不饱和双环内酯进行立体选择性催化氢化。