乙酸酐 、
Acetic acid (3aS,6R,6aR,8S,9aR,9bS)-6-hydroxy-6-methyl-3,9-dimethylene-2-oxo-dodecahydro-azuleno[4,5-b]furan-8-yl ester 在
吡啶 作用下,
反应 10.0h,
以5 mg的产率得到Acetic acid (3aS,6R,6aR,8S,9aR,9bS)-8-acetoxy-6-methyl-3,9-dimethylene-2-oxo-dodecahydro-azuleno[4,5-b]furan-6-yl ester