7-(((-7-(2-(2-Amino-4-thiazolyl)-2-((1-(3-(3,4-dihydroxybenzoyl)carbaz oyl)-1-methylethoxy)imino)acetamido)-2-carboxy-8-oxo-5-thia-1-azabicyc lo(4.2.0)oct-2-en-3-yl)methyl)thio-5-methyl)-(1,2,4)triazolo(1,5-1)pyr imidine-2-carboxylic acid