1 NZV Ceftriaxone, bound form 1.000 2 CE4 (2r)-2-[(R)-{[(2z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}(carboxy)methyl]-5-methylidene-5,6-dihydro -2h-1,3-thiazine-4-carboxylic acid 0.730 3 LD0 (2r,4s,5r)-2-[(1r)-1-{[(2z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-2-oxoethyl]-5-(sulfanylmethyl)-1,3-thiazinane-4-carboxylic acid 0.730 4 CUG (2r)-2-[(S)-{[(2e)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}(carboxy)methyl]-5-(hydroxymethyl)-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid 0.711 5 CEF Cefotaxime, c3' cleaved, open, bound form 0.703 6 CEW (2r)-2-[(1r)-1-({[(2r)-2-amino-2,3-dihydro-1,3-thiazol-4-yl](methoxyimino)acetyl}amino)-2-oxoethyl]-5-methyl-3,6-dihydro-2h-1,3-thiazine-4-carboxylic acid 0.703 7 FZS (2r)-2-[(1s)-1-{[(2z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-2-hydroxyethyl]-5-methylidene-5,6-dihydro-2h-1,3-thiazine-4-carboxylic acid 0.703