benzhydryl (6R,7R)-7-[[(2Z)-2-(2-benzhydryloxy-2-oxoethoxy)imino-2-[2-(tritylamino)-1,3-thiazol-4-yl]acetyl]amino]-8-oxo-3-[2,2,2-triphenyl-1-(1H-triazol-4-ylsulfanyl)ethyl]sulfanyl-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate