ES446133A1 - A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
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Fujisawa Pharmaceutical Co Ltd
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Fujisawa Pharmaceutical Co Ltd
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Priority to ES446133ApriorityCriticalpatent/ES446133A1/en
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A procedure for the preparation of new derivatives of 2-lower alkyl -2 or 3-cephem-4-carboxylic acid of general formula: **(See formula)** where R is acylamino, R2 is carboxy or protected carboxy, R3 is lower alkyl and X is (see formula), or a pharmaceutically acceptable salt thereof, the procedure of which is to react a compound of general formula: **(See formula)** where R2, R3 and X are as defined above, and R1b is acylamino, with a trialkyloxonium haloborate or an iminohalogenating agent and an iminoeterifying agent and then reacting the resulting compound with an acylating agent, if necessary followed by hydrolysis. (Machine-translation by Google Translate, not legally binding)
ES446133A1976-03-161976-03-16A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES446133A1
(en)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
Process for preparing 7-(alpha-hydroxy-alpha-phenyl)acetamido-3-(1-methyl-1h-tetrazol-5-ylthiomethyl)-3-cephem-4-carboxylic acid and derivatives thereof
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of acid2,3-alquilen (lower) penam-3-carboxylic. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of new derivatives of 2-alkyl (bottom) -2 or 3-cefem-4-carboxylic acid. (Machine-translation by Google Translate, not legally binding)