Cefixime EP Impurity A

Chemical Name: 2-[[(Z)-2-(2-aminothiazol-4-yl)-2-[(carboxymethoxy)imino]acetyl]amino]-2-[(2R)-5-methyl-7-oxo-1,2,5,7-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-yl]acetic acid (as per EP)

Synonym: 1-[(3,4-Diethoxyphenyl)methylene]-6,7-diethoxy-1,2,3,4-tetrahydroisoquinoline Hydrochloride; Isodihydroperparine Hydrochloride; NOSH-BRA; No-Spa; No-Spa Hydrochloride; Tetraspasmin-Lefa;

Smile: NC1=NC(/C(C(NC([C@@]2([H])SCC3=C(C(OC3C)=O)N2)C(O)=O)=O)=N/OCC(O)=O)=CS1