Acetic acid (3S,3aR,4S,4aR,6S,7aR,8R,9aR)-6-acetoxy-8-hydroxy-3,4a,8-trimethyl-2,5-dioxo-dodecahydro-azuleno[6,5-b]furan-4-yl ester 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 0.17h,
以12 mg的产率得到Acetic acid (3S,3aR,4S,4aS,5R,6S,7aR,8R,9aR)-6-acetoxy-5,8-dihydroxy-3,4a,8-trimethyl-2-oxo-dodecahydro-azuleno[6,5-b]furan-4-yl ester