溶剂黄146 、 Acetic acid (8R,9S,10S,13S,14S,16R,17R)-2-methoxy-4,4,10,13-tetramethyl-3-oxo-3,4,7,8,9,10,11,12,13,14,15,16-dodecahydro-20-oxa-cyclopropa[16,17]cyclopenta[a]phenanthren-17-yl ester 在
高氯酸 作用下,
生成
16α-Acetoxy-2-methoxy-4,4-dimethyl-androsta-1,5-dien-3,17-dion