(7E)-7-{[(Z)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-1-hydroxy-2-(4-hydroxyphenyl)vinyl]imino}-8-hydroxy-3-[(4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl]-5-thia-1-azabicyclo[4.2 .0]oct-2-ene-2-carboxylic acid

(7E)-7-{[(Z)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-1-hydroxy-2-(4-hydroxyphenyl)vinyl]imino}-8-hydroxy-3-[(4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl]-5-thia-1-azabicyclo[4.2 .0]oct-2-en-2-carbonsäure

(7E)-7-{[(Z)-2-{[(4-Ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino}-1-hydroxy-2-(4-hydroxyphenyl)vinyl]imino}-8-hydroxy-3-[(4-methyl-5-thioxo-4,5-dihydro-1H-tetrazol-1-yl)methyl]-5-thia-1-azabicyclo[4.2 .0]oct-2-ene-2-carboxylic acid

5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(4,5-dihydro-4-methyl-5-thioxo-1H-tetrazol-1-yl)methyl]-7-[[(Z)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-1-hydroxy-2-(4-hydroxyphe nyl)ethenyl]imino]-8-hydroxy-, (7E)-

Acide (7E)-7-{[(Z)-2-{[(4-éthyl-2,3-dioxo-1-pipérazinyl)carbonyl]amino}-1-hydroxy-2-(4-hydroxyphényl)vinyl]imino}-8-hydroxy-3-[(4-méthyl-5-thioxo-4,5-dihydro-1H-tétrazol-1-yl)méthyl]-5-thia-1-azabicyc lo[4.2.0]oct-2-ène-2-carboxylique