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Beecham Group PLC
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Beecham Group PLC
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Priority to FR843572ApriorityCriticalpatent/FR1393958A/fr
Application grantedgrantedCritical
Publication of FR1393958ApublicationCriticalpatent/FR1393958A/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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Organic Chemistry
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FR843572A1960-11-101960-11-10Procédé de préparation de pénicillines alpha-oxo-substituées
ExpiredFR1393958A
(fr)