cefotaxime
(2S,3S)-1-(benzyloxy)-2-methyl-4-oxoazetidin-3-ylammonium tosylate salt
Methanesulfonic acid (1R,2S)-2-benzyloxycarbamoyl-1-methyl-2-(2-nitro-phenylsulfanylamino)-ethyl ester
(2S,3R)-N-Benzyloxy-3-hydroxy-2-(2-nitro-phenylsulfanylamino)-butyramide
(3S-trans)-4-Methyl-3-[[(2-nitrophenyl)thio]amino]-1-(phenylmethoxy)-2-azetidinone