.omega.-(3-pyridyl)alkenamide derivatives and anti-allergenic

Abstract

Compounds of the formula: ##STR1## wherein X is alkylene or --(CR.sub.6 .dbd.CR.sub.7).sub.r -- wherein R.sub.6 is H, alkyl or phenyl, R.sub.7 is H, alkyl, cyano or phenyl, and r is 1 or 2; A is alkylene or alkylene interrupted by at least one double bond; R.sub.1 is H, halogen, alkyl, alkoxy, alkylthio, cycloalkyloxy, cycloalkylthio, alkoxycarbonyl, carboxy, phenyl, phenoxy, phenylthio, 3-pyridyloxy or 3-pyridylthio; R.sub.2 is H, hydroxy, alkanoyloxy or alkoxycarbonyloxy, or adjacent R.sub.1 and R.sub.2 may combine to form tetramethylene or --CH.sub.2 OCR.sub.8 R.sub.9 O-- (R.sub.8 and R.sub.9 are alkyl); R.sub.3 is H, alkyl or hydroxyalkyl; R.sub.4 is H or alkyl; R.sub.5 is phenyl, heteroaryl or --(CH.sub.2).sub.m --CHR.sub.10 R.sub.11 (R.sub.10 is H or phenyl, R.sub.11 is phenyl or pyridyl and m is 0 to 2); p is 0 or 1; and q is 2 or 3; the phenyl group or moiety being optionally substituted, and a salt thereof, process for the preparation thereof, and pharmaceutical composition containing the same. Said compounds and salts thereof show excellent antiallergic activity mainly through 5-lipoxygenase inhibiting activity, antihistamine activity and/or inhibitory activity against chemical mediator release and useful for treatment of allergic diseases.