Acetic acid (3aS,4S,8S,8aS,9S)-7-acetoxymethyl-3a,4,8a-trimethyl-1,2,3,3a,4,5,8,8a-octahydro-4,8-methano-azulen-9-yl ester 在
sodium chromate(VI) 、
乙酸酐 作用下,
生成
Acetic acid (3aS,4S,8S,8aS,9S)-7-acetoxymethyl-3a,4,8a-trimethyl-5-oxo-1,2,3,3a,4,5,8,8a-octahydro-4,8-methano-azulen-9-yl ester