(6R,7R)-7-{[(2S)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-2-(4-hydroxyphenyl)acetyl]amino}-3-{[(1-methyl-1H-tetrazol-5-yl)sulfanyl]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbo xylate

(6R,7R)-7-{[(2S)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-2-(4-hydroxyphenyl)acetyl]amino}-3-{[(1-methyl-1H-tetrazol-5-yl)sulfanyl]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-2-carbox ylat

(6R,7R)-7-{[(2S)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-2-(4-hydroxyphenyl)acetyl]amino}-3-{[(1-methyl-1H-tetrazol-5-yl)sulfanyl]methyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbo xylate

(6R,7R)-7-{[(2S)-2-{[(4-Éthyl-2,3-dioxo-1-pipérazinyl)carbonyl]amino}-2-(4-hydroxyphényl)acétyl]amino}-3-{[(1-méthyl-1H-tétrazol-5-yl)sulfanyl]méthyl}-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ène-2-carbo xylate

5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2S)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-8-oxo- , ion(1-), (6R,7R)-