[(4aS,6aR,12aR,12bS)]-(2H)-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-4,4,6a,12b-tetramethylbenzo[a]xanthene-10-carboxaldehyde 在
间氯过氧苯甲酸 作用下,
以
二氯甲烷 为溶剂,
反应 14.0h,
以91%的产率得到[(4aS,6aR,12aR,12bS)]-(2H)-1,3,4,4a,5,6,6a,12,12a,12b-decahydro-4,4,6a,12b-tetramethylbenzo[a]xanthen-10-yl formate