Cefoxitin EP Impurity G

Chemical Name: (6R,7S)-3-[[[[[[(6R,7S)-2-Carboxy-7-methoxy-8-oxo-7-[[2-(thiophen-2-yl)acetyl] amino]-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]oxy]carbamoyl]oxy]methyl]-7-methoxy-8-oxo-7-[[2-(thiophen-2-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (as per EP)

Smile: O=C(C(N12)=C(COC(NOCC(CS[C@]3([H])[C@]4(OC)NC(CC5=CC=CS5)=O)=C(C(O)=O)N3C4=O)=O)CS[C@]2([H])[C@@](NC(CC6=CC=CS6)=O)(OC)C1=O)O