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.)
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Teijin Ltd
Original Assignee
Teijin Ltd
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Filing date
Publication date
Application filed by Teijin LtdfiledCriticalTeijin Ltd
Priority to FR7634143ApriorityCriticalpatent/FR2370749A1/fr
Publication of FR2370749A1publicationCriticalpatent/FR2370749A1/fr
Application grantedgrantedCritical
Publication of FR2370749B1publicationCriticalpatent/FR2370749B1/fr
C07D499/00—Heterocyclic compounds containing 4-thia-1-azabicyclo [3.2.0] heptane ring systems, i.e. compounds containing a ring system of the formula:, e.g. penicillins, penems; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Cephalosporin Compounds
(AREA)
FR7634143A1976-11-121976-11-12Derives d'acide methylene-3 cephalosporanique et procede pour leur preparation
GrantedFR2370749A1
(fr)