PROCESS FOR PREPARING 3'-THIOSUBSTITUTED CEPHALOSPORINS EMPLOYING A PENICILLIN G ACYLASE
The present invention relates to a process for the preparation of 3′-thiosubstituted cephalosporins by enzymatic condensation of a nucleus with a phenylglycine derivative. Furthermore the present invention relates to a crystalline form of a compound of general formula (1) wherein R2 is OH and X is S...
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Format: | Patent |
Sprache: | eng ; pol |
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Zusammenfassung: | The present invention relates to a process for the preparation of 3′-thiosubstituted cephalosporins by enzymatic condensation of a nucleus with a phenylglycine derivative. Furthermore the present invention relates to a crystalline form of a compound of general formula (1) wherein R2 is OH and X is S and R1 is a radical of formula (2a) with R3 is CH3. |
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