(+/-)-trans-1-hydroxy-3-(5-methoxy-2-pentyl)-6,6-dimethyl-6,6a,7,8,10,10a-hexahydro-9H-dibenzopyran-9-one 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 0.5h,
以35%的产率得到3-(5-methoxypentan-2-yl)-6,6-dimethyl-6a,7,8,9,10,10a-hexahydrobenzo[c]chromene-1,9-diol