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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 FR841802ApriorityCriticalpatent/FR1393202A/fr
Application grantedgrantedCritical
Publication of FR1393202ApublicationCriticalpatent/FR1393202A/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)
FR841802A1960-10-211960-10-21Procédé de préparation d'acides pénicillaniques
ExpiredFR1393202A
(fr)