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Publication of AT355213BpublicationCriticalpatent/AT355213B/de
C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
C07D501/02—Preparation
C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
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AT213279A1977-02-111979-03-21Verfahren zum herstellen von neuen derivaten der 7-acylamido-3-cephem-4-carbonsaeure und ihren salzen
AT355213B
(de)
Verfahren zum herstellen von neuen heteromono- cyclischen und heterobicyclischen derivaten ungesaettigter 7-acylamido-3-cephem-4-carbon- saeuren, ihren salzen und isomren
Verfahren zum herstellen von neuen heteromono- cyclischen und heterobicyclischen derivaten ungesaettigter 7-acylamido-3-cehpem-4-carbon- saeuren, ihren salzen und isomeren
Verfahren zum herstellen von neuen heteromono- cyclischen und heterobicyclischen derivaten ungesaettigter 7-acylamido-3-cephem-4-carbon- saeuren, ihren salzen und isomeren