4-Methyl-3-oxo-Δ
4-octalin-9β-carbonsaeure-ethylester 生成
1-Benzyloxymethyl-1-methyl-2-oxo-1,3,4,5,6,7-hexahydro-2H-naphthalene-4a-carboxylic acid ethyl ester 、 (1S,4aS)-1-Benzyloxymethyl-1-methyl-2-oxo-1,3,4,5,6,7-hexahydro-2H-naphthalene-4a-carboxylic acid ethyl ester