sodium methylate 、
astrahygrone 以
甲醇 为溶剂,
反应 10.0h,
以29.5 mg的产率得到(5S,6S)-5-Hydroxy-2-methyl-6-((5S,10S,13R,14R,17R)-4,4,10,13,14-pentamethyl-2,3,4,5,6,7,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-heptanoic acid methyl ester