[(8S,9S,10R,11S,13S,14S,17R)-11-hydroxy-17-(2-hydroxy-2-methoxyacetyl)-10,13-dimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl] benzoate 在
potassium cyanide 、
溶剂黄146 作用下,
反应 15.25h,
生成
2-[(8S,9S,10R,11S,13S,14S,17S)-11-羟基-10,13-二甲基-3-氧代-6,7,8,9,11,12,14,15,16,17-十氢环戊烯并[a]菲-17-基]-2-氧代乙酸甲酯