(3aR,3bS,9aS,10S,12aS,12bR,12cS)-10-tert-butoxy-5-methoxy-2,9a-dimethyl-3b,6,7,8,9,9a,10,11,12,12a,12b,12c-dodecahydro-3aH,4H-2-azacyclopropa[5,6]dicyclopenta[a,l]phenanthrene-1,3-dione 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以40%的产率得到(3aR,3bS,9aS,10S,12aS,12bR,12cS)-10-hydroxy-2,9a-dimethyl-3b,6,7,8,9,9a,10,11,12,12a,12b,12c-dodecahydro-3aH,4H-2-azacyclopropa[5,6]dicyclopenta[a,l]phenanthrene-1,3,5-trione