Acetic acid (9S,10S,13R,14R)-3-methoxy-10,13,14-trimethyl-1,17-dioxo-6,9,10,11,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-4-yl ester 以
乙腈 为溶剂,
反应 1.5h,
以109 mg的产率得到Acetic acid (9R,10S,13S,14S)-3-methoxy-10,13,14-trimethyl-1,17-dioxo-6,9,10,11,12,13,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-4-yl ester