The Sidechain of Ertapenem
1. The Deprotected Sidechain of Ertapenem
Name: (2S)-cis-3-[[(4-Mercapto-2-pyrrolidinyl)carbonyl]amino]benzoic Acid Monohydrochloride
Molecular formula : C12H14N2O3S.HCl
Molecular weight:302.78
CAS No.: 219909-83-8
Structural formula:

2. The Sidechain of Ertapenem:
Name: 3-[[[(2S,4S)-4-Mercapto-1-(4-nitrobenzyloxy)carbonyl-2-pyrrolidinyl]carbonyl]amino]-benzoic acid
Molecular formula : C20H19N3O7S
Molecular weight: 445.45
CAS No.: 202467-69-4
Structural formula:

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