7-(2-(2-amino-4-thiazolyl)-2-((1-(3-(3,4-dihydroxybenzoyl)carbazoyl)-1-methylethoxy)imino)acetamido)-3-(((2-(hydroxymethyl)-5-methyl(1,2,4)triazolo(1,5-a)pyrimidin-7-yl)thio)methyl)-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid