Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kyorin Seiyaku KkfiledCriticalKyorin Seiyaku Kk
Priority to PT8018785ApriorityCriticalpatent/PT80187B/en
Publication of PT80187ApublicationCriticalpatent/PT80187A/en
Publication of PT80187BpublicationCriticalpatent/PT80187B/en
The cpds. are of formula (IV), in which R1 is H or CH3. They are made by hydrolysis of the ester of formula (III) in which R is 1-3C alkyl, which is prepd. by reaction of a cpd. of formula (II) with a cpd. of formula (I), in which X is a halogen atom.
PT8018785A1985-03-291985-03-29
PROCESS FOR THE PREPARATION OF QUINOLINE-CARBOXYLIC ACID DERIVATIVES
PT80187B
(en)
Process for preparing certain 1-lower alkanoyl or benzoyl-4-(lower alkanoyl or benzoyl-methylidene)-1,4-dihydropyridines or acid addition salts thereof