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Beecham Research Laboratories Ltd
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Beecham Research Laboratories Ltd
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Application filed by Beecham Research Laboratories LtdfiledCriticalBeecham Research Laboratories Ltd
Priority to FR903917ApriorityCriticalpatent/FR1328789A/fr
Application grantedgrantedCritical
Publication of FR1328789ApublicationCriticalpatent/FR1328789A/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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FR903917A1962-07-131962-07-13Procédé de préparation de l'alpha-aminobenzylpénicilline
ExpiredFR1328789A
(fr)