Quinoline compounds

A quinoline compound represented by formula (1) or a salt thereof:

• ##STR15## wherein Q is a heterocyclic derivative moiety represented by formula (3) ##STR16## where R.sup.1 is a lower alkyl, halo lower alkyl, cyclo lower alkyl, alkenyl, alkoxy, alkoxy lower alkyl or alkylthio group;
• R.sup.2 and R.sup.3 may be the same or different and each represents a hydrogen atom, halogen atom, a lower alkyl, halo lower alkyl, cyclo lower alkyl, alkenyl or alkoxy group, C.sub.m F.sub.2m+1 --, --(CH.sub.2).sub.n R.sup.9 or --(CH.sub.2).sub.p COR.sup.10 ;
• R.sup.4 is a hydrogen atom, a halogen atom, a lower alkyl group, an alkoxy group or C.sub.m F.sub.2m+1 --;
• R.sup.5 is a hydrogen atom or a group selected from --COOH, --COOR.sup.11, --CONH.sub.2 and --CN;
• R.sup.6 is a group selected from --COOH, --COOR.sup.12, --CONH.sub.2, --CN, --NHSO.sub.2 CF.sub.3 and a C-bonding tetrazolyl group;
• R.sup.7 and R.sup.8 may be the same or different and each represents a hydrogen atom, a halogen atom, a lower alkyl group, an alkoxy group or C.sub.m F.sub.2m+1 --;
• X and Y may be the same or different and each represents CH or a nitrogen atom;
• R.sup.9 is a hydroxy group or an alkoxy group;
• R.sup.10 is a hydrogen atom, a hydroxy group, a lower alkyl group or an alkoxy group;
• R.sup.11 and R.sup.12 may be the same or different and each represents a lower alkyl, alkenyl, cyclo lower alkyl, aryl or aralkyl group;
• m is an integer of 1 to 6;
• n is an integer of 1 to 4;
• and p is an integer of 0 to 4.