. "(6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-hydroxyimino]-acetylamino}-8-oxo-3-(2-oxo-1-phenyl-azetidin-3-ylidenemethyl)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid" . "28" . . . . . . . . . . . .