Indole derivatives, a process for their preparation and their use in medicaments

A method for antagonizing leukotriene in a patient in need thereof which comprises administering to such patient an amount effective therefor of an indole derivative of the formula:

• ##STR34## in which A represents straight-chain or branched alkyl having up to 10 carbon atoms, which is unsubstituted or substituted by cyclopropyl, cyclopentyl, cyclohexyl, fluorine, chlorine, bromine, hydroxyl, carboxyl, cyano, straight-chain or branched alkoxy or alkoxycarbonyl, each having up to 8 carbon atoms;
• represents straight-chain or branched alkyl or alkenyl each having 12 to 16 carbon atoms, each of which is unsubstituted or substituted by fluorine, chlorine, bromine, carboxyl, hydroxyl, straight-chain or branched alkoxy, acyl or alkoxycarbonyl each having up to 8 chain atoms, or by phenyl which may in turn be monosubstituted to trisubstituted by identical or different substituents selected from the group consisting of fluorine, chlorine, bromine, carboxyl, cyano and hydroxyl, or by a group of the formula --Y--(CH.sub.2).sub.n --X--R.sup.3 ;
• in which
• X and Y are identical or different and represent oxygen, sulfur or a direct bond;
• n represents a number 1,2,3,4,5 or 6;
• and
• R.sup.3 represents phenyl or naphthyl, each of which is unsubstituted or substituted by hydroxyl, carboxyl, cyano, fluorine, chlorine, bromine or by straight-chain or branched alkoxy, acyl or alkoxycarbonyl, each having up to 8 carbon atoms;
• or
• B represents phenyl, which is unsubstituted or monosubstituted or disubstituted by identical or different substituents selected from the group consisting of fluorine, chlorine, bromine, nitro and hydroxyl, or by a group of the formula --Y--(CH.sub.2).sub.n --X--R.sup.3 ;
• D,E,F and G are identical or different and represent hydrogen, fluorine, chlorine, bromine, cyano, carboxyl, straight-chain or branched alkyl, acyl or akoxycarbonyl each having up to 8 carbon atoms, thienyl, furyl, pyrryl or tetrazolyl;
• or represent a group of the formula --CO--NH--SO.sub.2 --R.sup.1,
• in which
• R.sup.1 represents phenyl or naphthyl, each of which is unsubstituted or monosubstituted or disubstituted by identical or different substituents selected from the group consisting of carboxyl, fluorine, chlorine, bromine, cyano, nitro or by straight-chain or branched alky, alkoxy or alkoxycarbonyl, each having up to 8 carbon atoms, or by phenyl or naphthyl, which are in turn monosubstituted to trisubstituted by identical or different substituents selected from the group consisting of carboxyl, straight-chain or branched alkyl, alkylthio, alkoxy or akloxycarbonyl, each having up to 8 carbon atoms, or by a group of the formula --NH--R.sup.2 ;
• in which
• R.sup.2 represents hydrogen, straight-chain or branched alkyl or acyl each having up to 6 carbon atoms;
• or a salt thereof.