(3S,3aR,5R,6R,7S,8S,8aR,9S)-5-allyl-3-((tert-butyldimethylsilyl)oxy)-6-hydroxy-8-methyloctahydro-1H-3a,7-methanoazulen-9-yl benzoate 在
pyridinium chlorochromate 作用下,
以98%的产率得到(3S,3aR,5R,7R,8S,8aR,9S)-5-allyl-3-((tert-butyldimethylsilyl)oxy)-8-methyl-6-oxooctahydro-1H-3a,7-methanoazulen-9-yl benzoate