p-methoxybenzyl 3-chloromethyl-7-formylamino-3-cephem-4-carboxylate 、
2-methylisoindoline-5,6-diol hydrobromide salt 生成 (4-methoxyphenyl)methyl (6R)-3-[(5,6-dihydroxy-2-methyl-1,3-dihydroisoindol-2-ium-2-yl)methyl]-7-formamido-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate;iodide