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RIT RECH IND THERAPEUT
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RIT RECH IND THERAPEUT
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Priority to FR876111ApriorityCriticalpatent/FR1419558A/fr
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Publication of FR1419558ApublicationCriticalpatent/FR1419558A/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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FR876111A1961-10-161961-10-16Procédé de préparation de nouveaux dérivés de l'acide 6-amino-pénicillanique
ExpiredFR1419558A
(fr)