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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
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Publication of FR1013689ApublicationCriticalpatent/FR1013689A/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)
FR1013689D1947-10-131948-09-06Perfectionnements à la fabrication de la pénicilline
ExpiredFR1013689A
(fr)