Document Detail


Ampicillin Synthesis Using a Two-Enzyme Cascade with Both α-Amino Ester Hydrolase and Penicillin G Acylase.
MedLine Citation:
PMID:  22039394     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The current enzymatic production of semisynthetic β-lactam antibiotics requires isolation and purification of the intermediate 6-aminopenicillanic acid which adds cost and complexity to the manufacturing process. In this work, we took advantage of the unique substrate specificity of a-amino ester hydrolases to perform a purely aqueous one-pot production of ampicillin from penicillin G and D-phenylglycine methyl ester, catalyzed by α-amino ester hydrolase and penicillin G acylase. The synthesis was performed in both a one-pot, one-step synthesis resulting in a maximum conversion of 39%, and a one-pot, two-step process resulting in a maximum conversion of 47%. The two-enzyme cascade reported in this paper is a promising alternative to the current enzymatic two-step, two-pot manufacturing process for semisynthetic β-lactam antibiotics which requires intermittent isolation of 6-aminopenicillanic acid.
Authors:
Janna K Blum; Andria L Deaguero; Carolina V Perez; Andreas S Bommarius
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  ChemCatChem     Volume:  2     ISSN:  1867-3899     ISO Abbreviation:  -     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2011-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101520610     Medline TA:  ChemCatChem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  987-991     Citation Subset:  -    
Affiliation:
School of Chemical and Biomolecular Engineering Parker H. Petit Institute of Bioengineering and Bioscience 315 Ferst Drive, Atlanta, GA 30332-0363 (USA).
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MeSH Terms
Descriptor/Qualifier:
Grant Support
ID/Acronym/Agency:
R01 AI064817-05//NIAID NIH HHS

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