(6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)pent-2-enamido)-3-((carbamoyloxy)methyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R,7R)-3-[[(Aminocarbonyl)oxy]methyl]-7-[[(2Z)-2-(2-amino-4-thiazolyl)-1-oxo-2-penten-1-yl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid; Cefcamate; Cefcapene Pivoxil Free Acid; S 1006