Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof: 1

Abstract: Compounds of formula (I) and pharmaceutically acceptable salts and solvates: where R1 is hydrogen, C1-6 alkyl (optionally substituted by hydroxy or C1-4alkoxy), phenyl-C1-4alkyl-, C1-6alkenyl, C1-6alkynyl; R2 is hydrogen or up to three substituents selected from halogen, NO2, CN, N3, CF3O—, CF3S—, CF3CO—, C1-6alkyl, C1-6alkenyl, C1-6alkynyl, C1-6perfluoroalkyl, C3-6cycloalkyl, C3-6cycloalkyl-C1-4alkyl-, C1-6alkylO—, C1-6alkylCO—, C3-6cycloalkylO—, C3-6cycloalkylCO—, C3-6cycloalkyl-C1-4alkylO—, C3-6cycloalkyl-C1-4alkylCO—, phenyl, phenoxy, benzyloxy, benzoyl, phenyl-C1-4alkyl-, C1-6alkylS—, C1-6alkylSO2—, (C1-4alkyl)2NSO2—, (C1-4alkyl)NHSO2—, (C1-4alkyl)2NCO—, (C1-4alkyl)NHCO— or CONH2; or —NR5R6 where R5 is hydrogen or C1-4 alkyl, and R6 is hydrogen, C1-4alkyl, formyl, —CO2C1-4alkyl or —COC1-4alkyl; or two R2 groups together form a carbocyclic ring that is saturated or unsaturated.

Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof wherein R1, R2 and R3 represent various functional groups, and one of X1 and X2 is N and the other is NR10; and their use as pharmaceuticals.

Abstract: Compounds of formula (I) in which: R1 is hydrogen or an organic substituent group; R2 is a fused bicyclic heterocyclic ring system of general formula (a) wherein R4 and R5 are independently hydrogen or one or more substituents replacing hydrogen atoms in the ring system shown; m is 2 or 3; p is 0, 1 or 2; and R3 is hydrogen, a salt-forming cation or an ester-forming group; and the symbol ═/═ indicates that the double bond may be in either the E or Z configuration.

Abstract: Compounds of formula (I) and pharmaceutically acceptable salts and solvates: 1

Abstract: Compounds of formula (I) and pharmaceutically acceptable salts and solvates: where R1 is hydrogen, C1-6alkyl (optionally substituted by hydroxy or C1-4alkoxy), phenyl-C1-4alkyl-, C1-6alkenyl, C1-6alkynyl; R2 is hydrogen or, up to three substituents selected from halogen, NO2, CN, N3, CF3O—, CF3S—, CF3SO2—, CF3CO—, C1-6alkyl, C1-6alkenyl, C1-6alkynyl, C1-6perfluoroalkyl, C3-6cycloalkyl, C3-6cycloalkyl-C1-4alkyl-, C1-6alkyl, C1-6alkylCO—, C3-6cycloalkylO—, C3-6cycloalkylCO—, C3-6cycloalkyl-C1-4alkylO—, C3-6cycloalkyl-C1-4alkylCO—, phenyl, phenoxy, benzyloxy, benzoyl, phenyl-C1-4alkyl-, C1-6alkylS—, C1-6alkylSO2—, (C1-4alkyl)2NSO2—, (C1-4alkyl)NHSO2—, (C1-4alkyl)2NCO—, (C1-4alkyl)NHCO— or CONH2; or —NR5R6 where R5 is hydrogen or C1-4alkyl, and R6 is hydrogen, C1-4alkyl, formyl, —CO2C1-4alkyl or —COC1-4alkyl; or two R2 groups together form a carbocyclic ring that is saturated or unsaturated, optionally inte

Abstract: Compounds of formula (I) and pharmaceutically acceptable salts thereof: where R1 is hydrogen, C1-6 alkyl optionally substituted by hydroxy or C1-4alkoxy, or C1-6 alkylphenyl; R2 is hydrogen or up to three substituents selected from halogen, NO2, CN, N3, C1-6 alkylO-, C1-6 alkylS-, C1-6 alkyl, C3-6cycloalkyl, C3-6cycloalkyl-C1-4alkyl-, C1-6alkenyl, C1-6alkynyl, CF3, CF3O, CF3CO—, C1-6alkylCO-, C3-6cycloalkylCO-, C3-6cycloalkyl-C1-4alkylCO-, phenyl, phenoxy, benzyloxy, benzoyl, phenyl-C1-4alkyl-, or —NR3R4 where R3 is hydrogen or C1-4 alkyl, and R4 is hydrogen, C1-4alkyl, —CHO, —CO2C1-4alkyl or —COC1-4alkyl; or two R2 groups form a saturated carbocyclic ring optionally interrupted by oxygen; and X is selected from hydrogen, halogen, cyano, alkyl and alkoxy; are useful in the treatment and prophylaxis of inter alia epilepsy.

Abstract: Compounds of formula (I) in which: R.sup.1 is hydrogen or an organic substituent group; R.sup.2 is a fused bicyclic heterocyclic ring system of general formula (a) wherein R.sup.4 and R.sup.5 are independently hydrogen or one or more substituents replacing hydrogen atoms in the ring system shown; m is 2 or 3; p is 0, 1 or 2; and R.sup.3 is hydrogen, a salt-forming cation or an ester-forming group; and the symbol .dbd./.dbd.