methyl 3-((6R,7S)-3-((carbamoyloxy)methyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-5-(hydroxymethyl)-2-(methoxy(2-(thiophen-2-yl)acetamido)methyl)-1,2,3,6-tetrahydropyrimidine-4-carboxylate,methyl 3-((6R,7S)-3-((carbamoyloxy)methyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbonyl)-5-(hydroxymethyl)-2-(methoxy(2-(thiophen-2-yl)acetamido)methyl)-1,2,3,6-tetrahydropyrimidine-4-carboxylate,Cefoxitin