(2S,4aS,6aR,13aR)-10,11-Dimethoxy-2,4a,6a,9,13,13a-hexamethyl-3-oxo-8-(2-oxo-propyl)-2,3,4,4a,5,6,6a,8,13a,13b-decahydro-1H-dibenzo[a,i]fluorene-2-carboxylic acid methyl ester 在
氢氧化钾 作用下,
以
甲醇 、
苯 为溶剂,
反应 4.0h,
以0.015 g的产率得到(2S,4aS,6aR,13aR)-10,11-Dimethoxy-2,4a,6a,9,13,13a-hexamethyl-3-oxo-8-(2-oxo-propyl)-2,3,4,4a,5,6,6a,8,13a,13b-decahydro-1H-dibenzo[a,i]fluorene-2-carboxylic acid