(E)-6-(2,3-Diaza-bicyclo[2.2.1]hept-2-en-7-ylidene)-hex-2-enoic acid methyl ester 、 (4R,7R,7aR,8S)-2,4,5,6,7,7a-Hexahydro-1H-4,7-methano-indene-8-carboxylic acid methyl ester 、 methyl (1R,6R,7R,10R)-tricyclo[5.2.1.02,6]dec-2-ene-10-carboxylate 生成
(3,3a,4,5-Tetrahydro-2H-inden-4-yl)-acetic acid methyl ester