N-3a-[2-(2-aminoethylamino)ethyl]-1-isopropenyl-5a,5b,8,8,11a-pentamethyl-9-oxoperhydrocyclopenta[a]chrysen-3a-carboxamide 在
sodium tetrahydroborate 作用下,
以
异丙醇 为溶剂,
反应 2.0h,
以92%的产率得到N-3a-[2-(2-aminoethylamino)ethyl]-9-hydroxy-1-isopropenyl-5a,5b,8,8,11a-pentamethylperhydrocyclopenta[a]chrysen-3a-carboxamide