Chemical Name: (6R,7R)-3-((carbamoyloxy)methyl)-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Synonym: Capecitabine Diacetyl Amino Impurity
Smile: NC(OCC1=C(C(O)=O)N2[C@]([C@]([H])(NC(CC3=CC=CS3)=O)C2=O)([H])SC1)=O