ethyl 4-(10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carbonyl-1-phenylpyrazole-3-carboxylate 在
一水合肼 作用下,
以
乙醇 为溶剂,
反应 4.0h,
以70%的产率得到4-(10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-phenyl-2,5-dihydropyrazlo[3,4-d]pyridazin-4-one