Acetic acid (1S,4aR,5S,6S,7R,8S,9aS)-7,8-diacetoxy-4,5,9,9-tetramethyl-2-oxo-2,4a,5,6,7,8,9,9a-octahydro-1H-1,5-cyclo-benzocyclohepten-6-yl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
以72%的产率得到<1S-(1β,2α,3α,4α,5β,7β,8α,11α)>-3,4,5-tris(acetyloxy)-2,6,6,11-tetramethyltricyclo<5.4.0.0
2.8>undecan-9-one