spiro[cyclohexan-1',6-hexahydro-2-(p-tolylsulfonyl)pyrrolo-[1,2-e]imidazol-3-one] 、 tert-butyldimethylsilyl 2,6-bis(trifluoromethansulfonyloxy)phenyl ether 在
cesium fluoride 作用下,
以
1,4-二氧六环 为溶剂,
反应 0.67h,
以75%的产率得到(±)-6-oxo-5-tosyl-3a,4,5,6-tetrahydro-1H,3H-spiro[benzo[f]pyrrolo[1,2-a][1,4]diazepine-2,1'-cyclohexan]-7-yl trifluoromethanesulfonate