(3R,3aR)-7-Methoxy-6-methyl-2,3,4,5-tetrahydro-cyclopenta[a]naphthalene-3,3a-dicarboxylic acid dimethyl ester 在
palladium on activated charcoal
sodium hydroxide 、
草酰氯 、
氢气 作用下,
以
甲醇 为溶剂,
生成
(3R,3aS,9bR)-3-Chlorocarbonyl-7-methoxy-6-methyl-1,2,3,4,5,9b-hexahydro-cyclopenta[a]naphthalene-3a-carboxylic acid methyl ester