methyl 5-methyl-6-methylene-2-oxobicyclo[3.2.1]octane-1-carboxylate
methyl 5-methyl-6-methylidene-2-oxobicyclo[3.2.1]octane-1-carboxylate 2-keto-5-methyl-6-methylene-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester 5-methyl-6-methylene-2-oxo-bicyclo[3.2.1]octane-1-carboxylic acid methyl ester
methyl 5-methyl-6-methyliden-2-oxobicyclo[3.2.1]octan-1-carboxylat méthyle5-méthyl-6-méthylidène-2-oxobicyclo[3.2.1]octane-1-carboxylate メチル=5-メチル-6-メチリデン-2-オキソビシクロ[3.2.1]オクタン-1-0
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