2,2'-二硫二吡啶 、 (8S,9S,10R,13S,14S,17S)-2-(4-tert-butylbenzyl)-3-(methoxycarbonyl)-10,13-dimethyl-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylic acid 在
三苯基膦 作用下,
以
甲苯 为溶剂,
反应 16.0h,
生成 (2S,8S,9S,10R,13S,14S,17S)-methyl 2-(4-tert-butylbenzyl)-10,13-dimethyl-17-[(pyridin-2-ylthio)carbonyl]-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate 、
(2R,8S,9S,10R,13S,14S,17S)-methyl 2-(4-tert-butylbenzyl)-10,13-dimethyl-17-[(pyridin-2-ylthio)carbonyl]-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-3-carboxylate