5-Thia-1-aza-bicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((2-amino-4-thiazolyl)((2-(2-(3,4-dihydroxybenzoyl)hydrazino)-1,1-dimethyl-2-oxoethoxy)imino)acetyl)amino)-3-(((2-(hydroxymethyl)-5-methyl(1,2,4)triazolo(1,5-a)pyrimidin-7-yl)thio)methyl)-8-oxo-, (6R-(6alpha,7beta(Z)))-