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0 Metric Ton |
Negotiable |
Immobilized penicillin amidase Immobilized penicillin acylase Synthetic Penicillin acylase
Penicillin G Acylase
Rate of Conversion more than 170
Rate of Side-Chain less than 1.02
Function |
---|
catalytic activity |
hydrolase activity |
Process |
physiological process |
metabolism |
cellular metabolism |
drug metabolism |
antibiotic metabolism |
antibiotic biosynthesis |
Synthetic Penicillin acylase introduction
Penicillin acylase(E.C 3.5.1.11) is the enzyme used commercially for the production of semisyntheticβ-lactam antibiotics and their intermediates. The industrial production of β-lactam antibiotics and their intermediates is undergoing a remarkable transformation traditional chemical conversions based on stoichiometry are being replaced by enzyme-catalyzed processes.
A general production chart of penicillin-derived antibiotics(semi-synthetic penicillins, SSPs, e.g., amoxicillin and ampicillin) and cephalosporin-derived antibiotics (semi-synthetic cephalosporins ,SSCs, e.g., cefadroxil and cephalexin) is outlined in scheme.
The high S/H(synthesis/hydrolysis) ratio in synthesis reactions is compared to commercially available immobilized penicillin acylase. Industrial semi-synthetic antibiotics result from the condensation of a modified side –chain (the acyl donor) to a β-latam nucleus. For example amoxicillin , conversion: 6-APA > 99%, 6-APA:HPGMe≤1.02
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