英文别名
                        p-Nitrobenzyl 7-[2-(thien-2-yl)-acetamido]-3-methylsulfonyloxy-3-cephem-4-carboxylate;p-Nitrobenzyl 7-[2-(2-thienyl) acetamido]-3-methylsulfonyloxy-3-cephem-4-carboxylate;(4-nitrophenyl)methyl 3-methylsulfonyloxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate