(3aS,7aR)-6-[(E)-4-(2-hydroxy-5-methoxy-3-methylphenyl)-2-methylbut-2-enyl]-5-(2-hydroxy-2-methylpropyl)-3a,7a-dimethyl-1,2,3,7-tetrahydroinden-4-one 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
以42%的产率得到(3aS,4R,7aR)-6-[(E)-4-(2-hydroxy-5-methoxy-3-methylphenyl)-2-methylbut-2-enyl]-5-(2-hydroxy-2-methylpropyl)-3a,7a-dimethyl-2,3,4,7-tetrahydro-1H-inden-4-ol