(6R,7R)-7-[[(2Z)-2-(2-AMino-4-thiazolyl)-2-[(2-ethoxy-2-oxoethoxy)iMino]acetyl]aMino]-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid [ 79368-95-9 ]