Abstract: A class of 2(1H)-quinolone derivatives, substituted at the 3-position by a range of carbonyl-containing substitutients or by a five- or six-membered heteroaromatic moiety, are selective non-competitive antagonists of NMDA receptors and/or are antagonists of AMPA receptors, and are therefore of utility in the treatment of conditions, such as neurodegenerative disorders, convulsions or schizophrenia, which require the administration of an NMDA and/or AMPA receptor antagonist.

Abstract: Compounds of formula (I), and salts and prodrugs thereof, wherein Q represents optionally substituted phenyl, naphthyl, indolyl, benzothiophenyl, benzofuranyl, benzyl or indazolyl; Z represents O, S or NR.sup.8 ; X and Y are H or are together .dbd.O; R.sup.1 and R.sup.2 are H; optionally substituted C.sub.1-6 alkyl; optionally substituted phenyl(C.sub.1-4 alkyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ; R.sup.3 is H or C.sub.1-6 alkyl, R.sup.4 is H , C.sub.1-6 alkyl or optionally substituted phenyl; and R.sup.5 represents optionally substituted phenyl; are tachykinin antagonists. They and compositions thereof are useful in therapy.

Abstract: Compounds of formula (I), and salts and prodrugs thereof: ##STR1## wherein X represents O or S;Y represents (CH.sub.2).sub.m, where m is 0 or 1;Z represents (CH.sub.2).sub.n, where n is 0 or 1;R.sup.1 represents optionally substituted phenyl;R.sup.2 is phenyl, naphthyl, indazolyl, thienyl, furyl, pyridyl, thiazolyl, tetrazolyl, quinolyl, benzhydryl or benzyl;R.sup.3 is H, COR.sup.a, CO.sub.2 R.sup.a C(COOR).sub.2, C(CONR.sup.a R.sup.b).sub.2, COCONR.sup.a R.sup.b, COCO.sub.2 R.sup.a, C.sub.1-6 alkyl optionally substituted by a group selected from (CO.sub.2 R.sup.a, CONR.sup.a R.sup.b, hydroxy, cyano, COR.sup.a, NR.sup.a R.sup.b, C(NOH)NR.sup.a R.sup.b, CONHphenyl(C.sub.1-4 alkyl), COCO.sub.2 R.sup.a, C(.dbd.NR.sup.a)NR.sup.b NR.sup.c CO.sub.2 R.sup.d, CONHNR.sup.a R.sup.b, C(S)NR.sup.a R.sup.b, CONR.sup.a C.sub.1-6 alkylR.sup.12, CONR.sup.13 C.sub.2-6 alkynyl, CONR.sup.13 C.sub.2-6 alkenyl, COCONR.sup.a R.sup.b, CONR.sup.a C(NR.sup.b)NR.sup.c R.sup.d, CONR.sup.13 SO.sub.2 R.sup.a, SO.sub.2 R.sup.13 COR.sup.

Abstract: A class of substituted imidazole, triazole and tetrazole derivatives are selective agonists of 5-HT.sub.1 -like receptors and are therefore useful in the treatment of clinical conditions, in particular migraine and associated disorders, for which a selective agonist of these receptors is indicated.

Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein: R.sup.1 is H, certain optionally substituted C.sub.1.6 alkyl, or C.sub.3-7 cycloalkyl;R.sup.2 is (CH.sub.2).sub.q -tetrazolyl optionally substituted in the tetrazole ring by C.sub.1-4 alkyl, (CH.sub.2).sub.q -imidazolyl (where q is 0, 1, 2 or 3), CONHSO.sub.2 R.sup.9, SO.sub.2 NHCOR.sup.9 (where R.sup.9 is C.sub.1-6 alkyl, optionally substituted aryl or trifluoromethyl). SO.sub.2 NHR.sup.10 (where R.sup.10 is a nitrogen containing heterocycle), cyclopropyl or (CH.sub.2), CO.sub.2 H, where n is 1 or 2;R.sup.3 is C.sub.1-6 alkyl, halo or NR.sup.6 R.sup.7 ;R.sup.4 is C.sub.1-7 straight or branched chain alkyl; andx is 0, 1, 2 or 3;are CCK and/or gastrin receptor antagonists. They and compositions thereof are useful in therapy.

Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein n is 1, 2 or 3;X represents O or S;Y represents a hydrocarbon chain of 1, 2, 3 or 4 carbon atoms optionally substituted by oxo;R.sup.1 is phenyl optionally substituted by 1, 2 or 3 of C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, trimethylsilyl, --OR.sup.a, SR.sup.a, SOR.sup.a, SO.sub.2 R.sup.a, --NR.sup.a R.sup.b, --NR.sup.a COR.sup.b, --NR.sup.a CO.sub.2 R.sup.b, --CO.sub.2 R.sup.a or --CONR.sup.a R.sup.b ;R.sup.2 is phenyl, indazolyl, thienyl, furyl, pyridyl, thiazolyl, tetrazolyl, quinolyl, benzhydryl, or benzyl;R.sup.4 and R.sup.5 each independently represent H, halo, C.sub.1-6 alkyl, oxo, CH.sub.2 OR.sup.a, CO.sub.2 R.sup.a or CONR.sup.a R.sup.b ;R.sup.8 represents an optionally substituted aromatic heterocycle; andR.sup.a and R.sup.b are H, trifluoromethyl, C.sub.1-6 alkyl or phenyl optionally substituted by C.sub.

Abstract: A class of pyrrolo[2,3-b]pyridine derivatives, substituted at the 3-position by a substituted piperazinylmethyl moiety, are antagonists of dopamine receptor subtypes within the brain, having a selective affinity for the dopamine D.sub.4 receptor subtype over other dopamine receptor subtypes, and are accordingly of benefit in the treatment and/or prevention of psychotic disorders such as schizophrenia while manifesting fewer side-effects than those associated with classical neuroleptic drugs.

Abstract: A class of 4-hydroxy-pyrrolo[1,2-b]pyridazin-2(1H)-one derivatives, substituted at the 3-position by an optionally substituted aryl substituent, are selective non-competitive antagonists of NMDA receptors and/or are antagonists of AMPA receptors, and are therefore of utility in the treatment of conditions, such as neurodegenerative disorders, convulsions or schizophrenia, which require the administration of an NMDA and/or AMPA receptor antagonist.

Abstract: A class of 4-hydroxy-2(1H)-pyrrolone derivatives, substituted at the 3-position by an optionally substituted aryl substituent, are selective non-competitive antagonists of NMDA receptors and/or are antagonists of AMPA receptors, and are therefore of utility in the treatment of conditions, such as neurodegenerative disorders, convulsions or schizophrenia, which require the administration of an NMDA and/or AMPA receptor antagonist.

Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein: R.sup.1 is H, certain optionally substituted C.sub.1-6 alkyl, or C.sub.3-7 cyclocalkyl;R.sup.2 represents a group ##STR2## wherein X is O, S or NR.sup.8 where R.sup.8 is H or C.sub.1-4 alkyl; R.sup.3 is C.sub.1-6 alkyl, halo or NR.sup.6 R.sup.7 ;R.sup.4 is C.sub.1-7 alkyl, C.sub.3-7 cycloalkyl, C.sub.4-7 cycloalkylalkyl or optionally substituted aryl;n is 0, 1, 2 or 3; are CCK and/or gastrin receptor antagonists. They and compositions thereof are useful in therapy.

Abstract: A class of novel thiadiazoles, substituted on one of the ring carbon atoms with a non-aromatic azacyclic or azabicyclic ring system, and substituted on the other ring carbon atom with a substituent of low lipophilicity, or a hydrocarbon substituent; are potent muscarinic agonists, and have good CNS penetrability. The compounds are therefore useful in the treatment of neurological and mental illnesses, and are also of benefit in the treatment of severe painful conditions.

Abstract: 3(R)-[2-(6-trifluoromethylpyrazin)yl]-1-azabicyclo[2.2.2]octane and its salts, and pharmaceutical formulations thereof are useful in medicine. In particular, they are useful for the treatment of neurological and mental illnesses whose clinical manifestations are due to cholinergic deficiency, and for lowering intraocular pressure. The compound may be prepared by dehydroxylating or decarboxylating the corresponding 3-hydroxy- or carboxy-quinuclidine analogue.

Abstract: A class of optionally 4-substituted 3-nitro-2-oxo-1,2,3,4-tetrahydroquinoline derivatives are selective non-competitive antagonists of NMDA receptors and/or are antagonists of AMPA receptors, and are therefore of utility in the treatment of conditions, such as neurodegenerative disorders, convulsions or schizophrenia, which require the administration of an NMDA and/or AMPA receptor antagonist.

Abstract: This invention relates to benzodiazepine compounds which are useful as antagonists of cholecystokinin and gastrin.

Abstract: This present invention relates to a class of 4-hydroxy-2-(1H)-quinolones which are substituted in the 3-position by an optionally substituted aryl substituent. These compounds are selective non-competitive antagonists of N-methyl-D-aspartate (NMDA) receptors.

Abstract: Pyridines, substituted by a quinuclidine and a substituent of low lipophilicity or a hydrocarbon substituent, their salts and prodrugs, and formulations thereof are useful in the treatment of neurodegenerative disorders such as dementia. The compounds can be synthesized by methods analogous to these known in the art.

Abstract: Compounds of formula (I): ##STR1## wherein Q.sup.1 represents a phenyl group substituted by one or more halo; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;R.sup.1 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl;R.sup.2 is phenyl(C.sub.1-4 alkyl) optionally substituted in the phenyl ring by one or more groups selected from C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, halo, cyano, nitro, trifluoromethyl, SR.sup.b, SOR.sup.b, SO.sub.2 R.sup.b, OR.sup.b, NR.sup.b R.sup.c, NR.sup.b COR.sup.c, NR.sup.b COOR.sup.c, COOR.sup.b or CONR.sup.b R.sup.c, where R.sup.b and R.sup.c independently represent H, C.sub.1-6 alkyl, phenyl or trifluoromethyl; andZ is O, S, NR.sup.8 or CR.sup.9 R.sup.10, where R.sup.8 represents H C.sub.1-6 alkyl, phenyl, phenyl(C.sub.1-4 alkyl), COR.sup.11, COOR.sup.11, CONR.sup.9 R.sup.10 where R.sup.11 is phenyl, phenyl(C.sub.1-4 alkyl) or C.sub.1-6 alkyl, and R.sup.9 and R.sup.10 are each H, C.sub.1-6 alkyl, phenyl or phenyl(C.sub.

Abstract: A class of monomeric or dimeric peptides containing a specific hexa- or heptapeptide unit in either linear or cyclic form are active tachykinin antagonists and are therefore useful in disease states in which these peptides have been implicated, such as allergic conditions, inflammation, migraine, arthritis and CNS disorders.

Abstract: Compounds of formula (I), and salts and prodrugs thereof ##STR1## wherein Q.sup.1 is halo substituted phenyl; naphthyl; indolyl; benzthiophenyl; benzofuranyl; benzyl; or fluorenyl;. . is an optional covalent bond;one of X and Y is H and the other is hydroxy or C.sub.1-6 alkoxy, or X and Y are together .dbd.0 or .dbd.NOR.sup.5 ;R.sup.1 and R.sup.2 are H; C.sub.1-6 alkyl optionally substituted by hydroxy, cyano, COR.sup.c, CO.sub.2 R.sup.c, CONR.sup.c R.sup.d, or NR.sup.c R.sup.d (where R.sup.c and R.sup.d are H, C.sub.1-6 alkyl or phenyl(C.sub.0-4 alkyl) optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo and trifluoromethyl); phenyl(C.sub.1-4 alkyl) (optionally substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halo or trifluoromethyl); COR.sup.c ; CO.sub.2 R.sup.c ; CONR.sup.c R.sup.d ; COC.sub.1-6 alkylNR.sup.c R.sup.d ; CONR.sup.c COOR.sup.d ; or SO.sub.2 R.sup.c ;R.sup.3 is H, C.sub.1-6 alkyl or C.sub.2-6 alkenyl; andR.sup.4 is phenyl optionally substituted by C.sub.1-6 alkyl, C.sub.