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RIT RECH IND THERAPEUT
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RIT RECH IND THERAPEUT
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Priority claimed from GB4869663Aexternal-prioritypatent/GB1022407A/en
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Publication of FR3703MpublicationCriticalpatent/FR3703M/en
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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FR958615A1963-02-251963-12-27
Antibiotic drug based on 6-aminopenicillanic acid derivatives.
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