N-(三氟甲硫基)邻苯二甲酰亚胺 、
(3S,5S,8R,9S,10S,13S,14S)-10,13-dimethyl-17-oxohexadecahydro-1H-cyclopenta[a]phenanthren-3-yl 4-methylpentanoate 在
sodium benzoate 、 [Ir(2-(2,4-difluorophenyl)-5-(trifluoromethyl)pyridine)
2(4,4'-di-tert-butyl-2,2'-bipyridine)](PF
6) 作用下,
以
乙腈 为溶剂,
反应 24.0h,
以57%的产率得到(3S,5S,8R,9S,10S,13S,14S)-10,13-dimethyl-17-oxohexadecahydro-1H-cyclopenta[a]phenanthren-3-yl 4-methyl-4-((trifluoromethyl)thio)pentanoate