Ethyl 2-(2-thiophen-2-ylacetyl)sulfanylacetate 、
头孢呋辛杂质7 、 trimethylsilyl 7-amino-3-(carbamoyloxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 生成
(6R-trans)-3-[(carbamoyloxy)methyl]-8-oxo-7-(2-thienylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid