Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Sanofi Aventis US LLC
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Individual
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Priority claimed from US06/198,461external-prioritypatent/US4313951A/en
Application filed by IndividualfiledCriticalIndividual
Priority to CA000412810ApriorityCriticalpatent/CA1155852A/fr
Application grantedgrantedCritical
Publication of CA1155852ApublicationCriticalpatent/CA1155852A/fr
CA000412810A1979-11-261982-10-046-alkyl-5-(pyridinyl)-3-substituant-2(1h)-pyridinones, utiles comme agents cardiotoniques, et leur preparation
ExpiredCA1155852A
(fr)
5-(Pyridinyl)-6-(lower-alkyl)-2(1H)-pyridinones, 1,2-dihydro-2-oxo-5-(pyridinyl)-6-(lower-alkyl)nicotinic acids and lower-alkyl esters thereof, and cardiotonic use thereof
Process for preparing 3-amino-5-(pyridinyl)-2(1H)-pyridinones via N-hydroxy-1,2-dihydro-2-oxo-5-(pyridinyl)-nicotinimidamide by reaction with polyphosphoric acid