(6R,7R)-7-(2-Amino-4-thiazoleglyoxylamido)-3-[[[2-(hydroxycarbamoyl)-5-methyl-s-triazolo[1,5-a]pyrimidin-7-yl]thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid 、 2-(aminooxy)methyl-5-hydroxy-4(1H)-pyrimidinone 、
对甲苯磺酸一水合物 在
水 、
乙醚 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
反应 24.0h,
以there are obtained 20 mg of (6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-[[(1,4-dihydro-5-hydroxy-4-oxo-2-pyrimidinyl)methoxy]imino]acetamido]-3-[[[2-(hydroxycarbamoyl)-5-methyl-s-triazolo[1,5-a]pyrimidin-7-yl] thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid as a beige powder的产率得到(6R,7R)-7-[(Z)-2-(2-amino-4-thiazolyl)-2-[[(1,4-dihydro-5-hydroxy-4-oxo-2-pyrimidinyl)methoxy]imino]acetamido]-3-[[[2-(hydroxycarbamoyl)-5-methyl-s-triazolo[1,5-a]pyrimidin-7-yl]thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid