Carbonic acid methyl ester (R)-1-((S)-3-methyl-2-oxo-cyclohex-3-enyl)-allyl ester 以
环己烷 为溶剂,
生成
Carbonic acid methyl ester (1S,3R,6S,8R,9R)-8-methyl-7-oxo-tricyclo[4.2.1.03,8]non-9-yl ester 、 Carbonic acid methyl ester (1S,2R,5S,6R,7R)-1-methyl-9-oxo-tricyclo[3.3.1.0
2,7]non-6-yl ester