(6R,7R)-7-{[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-{[(1,5-dihydroxy-4-oxo-1,4-dihydro-2-pyridinyl)methoxy]imino}acetyl]amino}-3-({[1-(2-hydroxyethyl)-4-pyridiniumyl]sulfanyl}methyl)-8-oxo-5-thia-1-azabic yclo[4.2.0]oct-2-ene-2-carboxylate

(6R,7R)-7-{[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-{[(1,5-dihydroxy-4-oxo-1,4-dihydro-2-pyridinyl)methoxy]imino}acetyl]amino}-3-({[1-(2-hydroxyethyl)-4-pyridiniumyl]sulfanyl}methyl)-8-oxo-5-thia-1-azabic yclo[4.2.0]oct-2-en-2-carboxylat

(6R,7R)-7-{[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-{[(1,5-dihydroxy-4-oxo-1,4-dihydro-2-pyridinyl)methoxy]imino}acetyl]amino}-3-({[1-(2-hydroxyethyl)-4-pyridiniumyl]sulfanyl}methyl)-8-oxo-5-thia-1-azabic yclo[4.2.0]oct-2-ene-2-carboxylate

(6R,7R)-7-{[(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-{[(1,5-dihydroxy-4-oxo-1,4-dihydro-2-pyridinyl)méthoxy]imino}acétyl]amino}-3-({[1-(2-hydroxyéthyl)-4-pyridiniumyl]sulfanyl}méthyl)-8-oxo-5-thia-1-azabic yclo[4.2.0]oct-2-ène-2-carboxylate

Pyridinium, 4-[[[(6R,7R)-7-[[(2Z)-2-(2-amino-4-thiazolyl)-2-[[(1,4-dihydro-1,5-dihydroxy-4-oxo-2-pyridinyl)methoxy]imino]-1-oxoethyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]meth yl]thio]-1-(2-hydroxyethyl)-, inner salt