(1S,3S,4R,8S,9R,11S,12S)-12-methoxy-6,6,9-trimethyl-2,13-dioxapentacyclo[9.3.0.01,3.04,8.09,11]tetradecane 在
silica gel 作用下,
反应 2.0h,
生成
1,3,4,4a,5,6,7,7a,8,9-decahydro-4-hydroxy-1-methoxy-6,6,8-trimethylazuleno<5,6-c>furan 、 4,8-epoxy-1,3,4,4a,5,6,7,7a,8,9-decahydro-1-methoxy-6,6,8-trimethylazuleno<5,6-c>furan 、 1,3,4,4a,5,6,7,7a,8,9-decahydro-4,8-dihydroxy-1-methoxy-6,6,8-trimethylazuleno<5,6-c>furan 、
1,3,4,4a,5,6,7,7a,8,9-decahydro-4-hydroxy-1,8-dimethoxy-6,6,8-trimethylazuleno<5,6-c>furan