(1S,3aS,5R,6S,8aS)-1-Hydroxy-5-methoxymethoxy-4,5,6,7,8,8a-hexahydro-1H-3a,6-methano-azulene-3-carboxylic acid methyl ester 在
dipyridine chromium trioxide 作用下,
以
二氯甲烷 为溶剂,
反应 0.08h,
以85%的产率得到(3aS,5R,6S,8aS)-5-Methoxymethoxy-1-oxo-4,5,6,7,8,8a-hexahydro-1H-3a,6-methano-azulene-3-carboxylic acid methyl ester