ES447765A1 - Procedure for obtaining new derivatives of 7aminocephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for obtaining new derivatives of 7aminocephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
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Ferrer Internacional SA
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Ferrer Internacional SA
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Priority to ES447765ApriorityCriticalpatent/ES447765A1/en
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Procedure for obtaining new derivatives of 7-aminocephalosporanic acid, of general formula I: **(See formula)** where R are the following remains: **(See formula)** as well as its non-toxic addition salts, characterized by reacting the compound of formula II: **(See formula)** with activated forms of carboxylic acid of formula R-COX, where R has the same meaning as those indicated above and X is halogen (preferably chlorine) or COOAlq, where Alq is an alkyl residue containing 1 to 5 carbon atoms, in basic medium such as triethylamine or triethylamine: N, N-dimethylaniline. (Machine-translation by Google Translate, not legally binding)
ES447765A1976-05-041976-05-04Procedure for obtaining new derivatives of 7aminocephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES447765A1
(en)