Compounds of formula (I'), and compositions containing them: ##STR1## wherein n is 1, 2 or 3, each R.sub.1 independently represents a halogen atom; a hydroxy, carboxyl or C.sub.1-4 alkyl group, a C.sub.2-4 alkenyloxy, phenyl or phenyl-C.sub.1-4 alkoxy group which may be optionally substituted by one or more halogen atoms; an amino, mono- or dialkyl-amino, morpholino or piperazino group; a group of formula --S(O).sub.x R.sub.a where x is 0, 1 or 2 and R.sub.a is a C.sub.1-4 alkyl group; or a C.sub.1-4 alkoxy group which may be optionally substituted by one or more radicals selected from hydroxy, C.sub.1-4 alkoxy, amino, mono- or di-C.sub.1-4 alkylamino, (phenyl-C.sub.1-4 alkyl)amino, N,N-C.sub.1-4 alkyl(phenyl-C.sub.1-4 alkyl)amino and N,N-(C.sub.1-4 alkoxyphenyl-C.sub.1-4 alkyl)C.sub.1-4 alkyl-amino; n is 1, 2 or 3; m is 0 or 1; R.sub.2 represents a C.sub.1-4 alkyl group in the 1- or 3-position of the imidazo ring; R.sub.3 represents a hydrogen or halogen (fluorine, chlorine, bromine or iodine) atom, or a hydroxy, amino or C.sub.1-4 alkyl or alkoxy group; and physiologically acceptable acid addition salts thereof and N-oxides of such compounds and salts. Formula (I') includes the alternative tautomeric form. The compounds and compositions are useful for treatment of the human or animal body by therapy, particularly for use in the treatment or prophylaxis of heart failure and myocardial insufficiency.
This application is a continuation of application Ser. No 522,995, filed Aug. 15, 1983 which is a division of Ser. No. 440,258 filed Nov. 9, 1982, both now abandoned.
Priority Data
Nov 10, 1981 [GB] 8133930 Nov 10, 1981 [GB] 8133942 May 12, 1982 [GB] 8133846
This invention provides for certain 2-phenylimidazo[4,5-c]pyridines, their pharmaceutical formulations, and their use as positive inotropic agents, bronchodilators, vasodilators, and anticoagulants.
New 2-arylimidazopyridines of the general formula I ##STR1## wherein --A.dbd.B-- is (a) --CH.dbd.N-- or (b) N.dbd.CH--, Ar is a phenyl radical, which, in case (a), is substituted by one or two alkynyloxy, cyanomethoxy, carboxymethoxy, and/or alkyloxycarbonylmethoxy groups, and can be substituted by one or two additional hydroxyl, alkyloxy, alkenyloxy and/or alkynyloxy groups, or which in case (b), is substituted by one to three hydroxyl, mercapto, and/or --Z--R groups, Z is --O--, --S-- or --SO-- and R is alkyl, alkenyl, alkynyl, hydroxyalkyl, cyanomethyl, carboxymethyl or alkyloxycarbonylmethyl, the alkyl, alkenyl, alkynyl and hydroxyalkyl groups each having up to 5 C atoms, but wherein in case (b), the phenyl radical is only substituted by hydroxyl or methoxy groups if it has at the same time at least one other substituent differing from these, and their physiologically acceptable salts show positive inotropic effects.
The present invention provides compounds of Formula (I) wherein Q.sub.1, Q.sub.2, Q.sub.3, Q.sub.4, Y.sub.1, Y.sub.2, and Z are as defined in the description, and pharmaceutically acceptable salts thereof, and C.sub.1 -C.sub.8 alkyl esters thereof, which are useful for the treatment of diseases responsive to the inhibition of the enzyme 15-lipoxygenase. Thus, the compounds of Formula (I) and their pharmaceuticalyl acceptable salts are useful for treating diseases with an inflammatory component, including atherosclerosis, diseases involving chemotaxis of monocytes, inflammation, stroke, coronary artery disease, asthma, arthritis, colorectal cancer, and psoriasis. ##STR1##
