4-{[(4-acetoxyphenyl)thio]methyl}benzoic acid 、 (6S,8S,9R,10S,11S,13S,14S,17R)-6,9-difluoro-1 1,17-dihydroxy-10,13-dimethyl-3-oxo-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-17-carboxylic acid 、
溴乙腈 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 19.0h,
以43%的产率得到cyanomethyl (6α,11β,17α)-6,9-difluoro-11-hydroxy-17-[(4-{[(4-hydroxyphenyl)thio]methyl}benzoyl)oxy]-3-oxoandrosta-1,4-diene-17-carboxylate