METHOD FOR THE SYNTHESIS OF SEMI-SYNTHETIC ANTIBIOTICS IN THERMODYNAMICALLY CONTROLLED WATER-COSOLVENT ORGANIC MISCIBLE APOLAR SYSTEMS BY USING PENICILLIN G ACYLASE

摘要

Synthesis of semi-synthetic monobactamic or β-lactamic antibiotics by using derivatives stabilized by various methods of penicillin G acylase from various microbial sources according to a thermodynamically controlled strategy in monophase water/cosolvent organic apolar systems, wherein the concentration of the cosolvent varies between 30 % and 90 %, the temperature between -10 °C and 50 ° C, the pH between 4.5 and 8.5, with concentrations of the antibiotic nucleus between 0.5 and 875 mM and acyl donor between 0.2 mM and 1 M, with a relationship antibiotic ring/activated or free acyl donor, using a buffer between 0 and 1 M. Application to the pharmaceutical industry.