Ethylsulfanyl-acetic acid (8S,9S,11S,13S,14S,17R)-11-hydroxy-17-(2-iodo-acetyl)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl ester 在
乙硫醇 作用下,
以
N,N-二甲基甲酰胺 、
乙腈 为溶剂,
生成
17α-(Ethylthio)acetoxy-11β-hydroxy-4-pregnene-3,20-dione