2-[4-(N-acetyl-DL-alanylamino)phenyl]-4-hydroxy-5-pyrimidine carboxylic acid imidazolide 、 7-[D-2-amino-2-(4-hydroxyphenyl)acetamido)-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-3-cephem-4-carboxylic acid 、
sodium 2-ethylhexanoic acid 在
sodium hydroxide 作用下,
以
(2S)-N-methyl-1-phenylpropan-2-amine hydrate 、
N,N-二甲基乙酰胺 、
水 、
乙酸乙酯 为溶剂,
生成 N-[2-[4-(N-Acetyl-DL-alanylamino)phenyl]-4-hydroxy-5-pyrimidinylcarbonyl]-7-[D-2-amino-2-(4-hydroxyphenyl)acetamido]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-3-cephem-4-carboxylic acid