Acetic acid 2-((1S,2R,4aS,4bS,6S,10aR,12aS)-6-fluoro-2,10a,12a-trimethyl-8-oxo-1,2,3,4,4a,4b,5,6,8,10a,12,12a-dodecahydro-chrysen-1-yl)-2-oxo-ethyl ester 在
氢氧化钾 作用下,
生成 (4aS,4bR,5S,6aS,7S,8R,10aS,10bS,12S)-4b,12-Difluoro-5-hydroxy-7-(2-hydroxy-acetyl)-4a,6a,8-trimethyl-4b,5,6,6a,7,8,9,10,10a,10b,11,12-dodecahydro-4aH-chrysen-2-one