Sodium (6R,7R)-3-(((1,3,4-thiadiazol-2-yl)thio)methyl)-7-(2-(1H-tetrazol-1-yl)acetamido)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
(6R,7R)-3-(((1,3,4-Thiadiazol-2-yl)thio)methyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
5-((1R)-2,5-Diazabicyclo[2.2.1]heptan-2-yl)-1,2,4-thiadiazole
5-((1S)-2,5-Diazabicyclo[2.2.1]heptan-2-yl)-1,2,4-thiadiazole
