nalidixic acid, sodium salt 、 <6R-<6α,7β(Z)>>-7-<<(2-tritylamino-4-thiazolyl)(methoxyimino)acetyl>amino>-3-(iodomethyl)-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid tert-butyl ester 以
N,N-二甲基甲酰胺 为溶剂,
反应 6.0h,
以70.5%的产率得到1-Ethyl-7-methyl-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid (6R,7R)-2-tert-butoxycarbonyl-7-{2-[(Z)-methoxyimino]-2-[2-(trityl-amino)-thiazol-4-yl]-acetylamino}-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-3-ylmethyl ester