52727-70-5

(6R,7R)-7-({[2-(aminomethyl)phenyl]acetyl}amino)-8-oxo-3-[(tetrazolo[1,5-b]pyridazin-6-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid