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Beecham Group PLC
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Beecham Group PLC
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Application filed by Beecham Group PLCfiledCriticalBeecham Group PLC
Priority to ES486699ApriorityCriticalpatent/ES8101601A1/en
Publication of ES486699A0publicationCriticalpatent/ES486699A0/en
Publication of ES8101601A1publicationCriticalpatent/ES8101601A1/en
Procedure for obtaining 6-metoxy-alpha-carboxy-penicillines. Consists of the following operations: 1) reaction of a general formula compound (I) or a N-sililed or N-phosphorillate derivative thereof with an N-acrylic derivative of a formula (II) acid. * formula * 2) separation, if necessary, of any hydroxyl or carboxyl blocking group. 3) optionally, conversion of the product obtained (III) in a salt or ester of the same. Treatment of infections caused by gram-negative organisms. (Machine-translation by Google Translate, not legally binding)
ES486699A1979-12-071979-12-07A procedure for the preparation of a penicilline (Machine-translation by Google Translate, not legally binding)
ExpiredES8101601A1
(en)
Substituted (1-(-4,4-bisphenylbutyl)-4-piperidyl-)1,3-dihydro-2h-benzimidazol-2-one derivatives and certain intermediates for obtaining such compounds,their preparation and pharmaceutical compositions containing them
7-acyl-3-substituted carbamoylhydroxycephems, methods of their synthesis, substituted carbamoylhydroxy-3-cephems, methods of their synthesis and antibacterial composition