(-)-(3aS-(3aα,6α,7aβ),1'R,4'S,4a'S,9a'S)-hexahydro-8,8-dimethyl-1-(1',4',4a',9a'-tetrahydro-1',4'-methano-9',10'-dioxo-4a'-anthroyl)-3H-3a,6-methano-2,1-benzisothiazole-2,2-dioxide 在
四氯化锡 作用下,
以
二氯甲烷 为溶剂,
反应 0.17h,
以98%的产率得到((1S,5R,7R)-10,10-Dimethyl-3,3-dioxo-3λ
6-thia-4-aza-tricyclo[5.2.1.0
1,5]dec-4-yl)-((6bS,9aS)-5-hydroxy-7,9a-dihydro-6bH-10-oxa-pentaleno[2,1-a]naphthalen-6-yl)-methanone