Heterocyclic compounds

Details Heterocyclic compounds Heterocyclic compounds

C - Chemistry, Metallurgy

07

D

260/264.7

C07D 401/06 (2006.01)

Patent

CA 1189862

ABSTRACT Heterocyclic Compounds Heterocyclic compounds of the formula:- Image wherein the dotted line in the pyridazine nucleus indicates that a double bond is optional in this position, and wherein Py is a 2 , 3- or 4- pyridinyl group which is unsubstituted, or which bears one or two substituents selected from halogen, cyano, hydroxymethyl, carboxy, carbamoyl and alkyl, alkoxy, alkoxycarbonyl, alkyl- carbamoyl and dialkylcarbamoyl wherein each alkyl or alkoxy has up to 4 carbon atoms, or which bears an oxygen substituent, either as an N-oxide or as an oxo sub- stitutent on the 2- or 4- carbon atom (that is, such as to form a pyridone); and acid-addition salts thereof; processes for their manufacture and pharmaceutical compositions containing them. The compounds possess cardiotonic and/or antihypertensive properties.

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