Benzoic acid (4R,4aS,4bS,8aS,9R,10aR)-9-hydroxy-4-methoxy-4a-methyl-6-oxo-1,3,4,4a,4b,5,6,9,10,10a-decahydro-2H-phenanthren-8a-ylmethyl ester 在
N,N-二甲基苯胺 作用下,
以
苯 为溶剂,
反应 24.0h,
生成 Benzoic acid (4R,4aS,4bS,5R,8aS,9R,10aR)-5-acetoxy-9-(2-bromo-1-ethoxy-ethoxy)-4-methoxy-4a-methyl-6-oxo-1,3,4,4a,4b,5,6,9,10,10a-decahydro-2H-phenanthren-8a-ylmethyl ester