. "(6R,7R)-3-[3-(2-Amino-ethylsulfanyl)-[1,2,4]thiadiazol-5-ylsulfanyl]-7-{2-(6-amino-pyridin-2-yl)-2-[(Z)-hydroxyimino]-acetylamino}-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid" . "22 c" . . . . . .