(4S,4aR,7aS,8S)-4-(tert-Butyl-dimethyl-silanyloxy)-4a,8-dimethyl-4,4a,6,7,7a,8-hexahydro-azuleno[6,5-b]furan-5,9-dione 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
以99%的产率得到(4S,4aR,7aS,8S,9R)-4-(tert-Butyl-dimethyl-silanyloxy)-9-hydroxy-4a,8-dimethyl-4a,6,7,7a,8,9-hexahydro-4H-azuleno[6,5-b]furan-5-one