benzyl 6α-(4-nitrobenzenesulfonyloxymethyl)-6β-(4-nitrobenzylideneamino)penicillanate 在
lithium iodide 作用下,
生成 benzyl 6α-iodomethyl-6β-(4-nitrobenzylideneamino)penicillanate 、
(5R)-6c-iodomethyl-3,3-dimethyl-7-oxo-6t-(2-phenoxy-acetylamino)-(5rH)-4-thia-1-aza-bicyclo[3.2.0]heptane-2c-carboxylic acid benzyl ester