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Merck and Co Inc
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Merck and Co Inc
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Application filed by Merck and Co IncfiledCriticalMerck and Co Inc
Application grantedgrantedCritical
Publication of FR1003894ApublicationCriticalpatent/FR1003894A/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)
FR1003894D1948-01-021948-12-10Procédé de préparation de l'éthérate diisopropylique cristallisé de l'acide benzylpénicillique et produit en résultant
ExpiredFR1003894A
(fr)