Acetic acid (3aS,6aS,9aS,9bR)-6a-hydroxy-3,6,9a-trimethyl-2-oxo-2,3,3a,4,5,6,6a,9,9a,9b-decahydro-azuleno[4,5-b]furan-9-yl ester 在
nickel boride 作用下,
以
二乙二醇二甲醚 为溶剂,
以30%的产率得到Acetic acid (3aS,9aS,9bR)-3,6,9a-trimethyl-2-oxo-2,3,3a,4,5,6,8,9,9a,9b-decahydro-azuleno[4,5-b]furan-9-yl ester