ES441350A1 - Procedure for obtaining a new derivative of the cephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for obtaining a new derivative of the cephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferrer Internacional SA
Original Assignee
Ferrer Internacional SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferrer Internacional SAfiledCriticalFerrer Internacional SA
Priority to ES441350ApriorityCriticalpatent/ES441350A1/en
Publication of ES441350A1publicationCriticalpatent/ES441350A1/en
Procedure for obtaining a new cephalosporinic acid derivative of formula i: ** (see formula) ** Characterized by reacting, at a temperature not exceeding the ambient, an active form of the 2-pyrrolidone-N-acetic acid, preferably its mixed anhydride formed with an alkyl chloroformate, with 7-amino-cephalosporonic acid in a basic aqueous solvent, preferably that formed by a mixture of tetrahydrofuran and triethylamine, followed by acidification. (Machine-translation by Google Translate, not legally binding)
ES441350A1975-09-271975-09-27Procedure for obtaining a new derivative of the cephalosporanic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES441350A1
(en)
Procedure for the preparation of N- (r-tetrahydrofurfuril) -noroximorphone and N- (s-tetrahydrofurfuril) -noroximorphone new. (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of 1,4-dioxide of 3- (2- quinoxalinyl methyl) methyl carbazate. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of solutions of the polycondensates of acid amidas alquiliden and aralquiliden-bis-tiocarboxºlicos (Machine-translation by Google Translate, not legally binding)