(6R,7R)-7-Amino-3-carbamoyloxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester; compound with toluene-4-sulfonic acid 、
(Z)-(dimethoxy-phosphoryl)-2-<2-(trityl-amino)-thiazol-4-yl>-acrylic acid 2,3,4,5,6-pentafluoro-phenyl ester 在
N,N-二乙基苯胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 48.0h,
以46%的产率得到(6R,7R)-7-<2-(Z)-(2-trityl-amino-thiazol-4-yl)-3-(dimethoxy-phosphoryl)-acryloylamino>-3-carbamoyloxymethyl-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenyl methyl ester