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Acetic acid,
2,2'-[[4-[[[(5,6-dihydro-4H-thieno[2,3-c]pyrrol-2-yl)carbonyl]amino]acetyl]
-1,2-phenylene]bis(oxy)]bis-
CAS:185245-57-2
Formula:C19H18N2O8S

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4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,
6-[(1R)-1-hydroxyethyl]-3-[[(3-nitrobenzoyl)oxy]methyl]-7-oxo-,
2-propenyl ester, (5R,6S)-
CAS:862429-11-6
Formula:C19H18N2O8S

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4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,
6-[(1R)-1-hydroxyethyl]-3-[[(4-nitrobenzoyl)oxy]methyl]-7-oxo-,
2-propenyl ester, (5R,6S)-
CAS:862429-21-8
Formula:C19H18N2O8S

-
4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,
6-[(1R)-1-hydroxyethyl]-3-[[(2-nitrobenzoyl)oxy]methyl]-7-oxo-,
2-propenyl ester, (5R,6S)-
CAS:862429-22-9
Formula:C19H18N2O8S