摘要:
A class of 8-fluoro-3-phenylimidazo[1,2-α]pyridine derivatives, substituted at the meta position of the phenyl ring by an optionally substituted aryl or heteroaryl group, or by a pyrrolidinonyl group, which is directly attached or bridged by an oxygen atom or by a —NH— or —OCH2— linkage, being selective ligands for GABAA receptors, in particular having high affinity for the α2 and/or α3 and/or α5 subunit thereof, are accordingly of benefit in the treatment and/or prevention of adverse conditions of the central nervous system, including anxiety, convulsions and cognitive disorders.
摘要翻译:一类在苯环的间位被任意取代的芳基或杂芳基取代的8-氟-3-苯基咪唑并[1,2-α]吡啶衍生物,或直接连接或桥连的吡咯烷基 由氧原子或-NH-或-OCH 2 - 键组成,是GABA A A受体的选择性配体,特别是对α2和/或 α3和/或α5亚基因此有益于治疗和/或预防中枢神经系统的不利条件,包括焦虑,抽搐和认知障碍。
摘要:
The present invention relates to compounds of formula I: in which R1 is a linear group or a five membered heterocycle optionally fused to a phenyl ring, R2 is a 5-membered heterocycle, R3 is chosen from a range of substituents, m is 0–3 and n is 0 or 1; the compounds are generally inverse agonists at GABA-A receptors containing the alpha 5 subunit and so are useful in methods of enhancing cognition in subjects with diminished cognition in diseases such as Alzheimer's Disease.
摘要翻译:本发明涉及式I化合物:其中R 1是线性基团或任选地与苯环稠合的五元杂环,R 2是5- R 3选自一系列取代基,m为0-3,n为0或1; 该化合物通常是含有α5亚基的GABA-A受体的反向激动剂,因此可用于增强患有阿尔茨海默病等疾病认知减退的受试者的认知的方法。
摘要:
Substituted 1,2,4-Triazolo[3,4-A]phthalazine derivatives that are GABA Alpha 5 ligands are prepared from compounds represented by the formula: in which R1 is hydrogen, halogen, CF3, OCF3, CN or an optionally substituted C1-4alkyl, C2-4alkenyl, C2-4alkynyl, C1-4alkoxy, C2-4alkenyloxy or C2-4alkynyloxy group; R2 is hydrogen, halogen, CF3, OCF3, CN or an optionally substituted C1-4alkyl, C2-4alkenyl, C2-4alkynyl, C1-4alkoxy, C2-4alkenyloxy or C2-4alkynyloxy group; Z is an optionally substituted 5-membered or 6-membered heteroaromatic ring; and G is a leaving group.
摘要:
A class of substituted piperidine and tetrahydropyridine derivatives, linked through the 4-position thereof via an alkylene chain to a fused bicyclic heteroaromatic moiety such as indolyl, and further substituted at the 1-position by an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl-alkyl, aryl-alkyl or heteroaryl-alkyl moiety, are selective agonists of 5-HT.sub.1 -like receptors, being potent agonists of the human 5-HT.sub.1D.spsb..alpha. receptor subtype whilst processing at least a 10-fold selective affinity for the 5-HT.sub.1D.spsb..alpha. receptor subtype relative to the 5-HT.sub.1D.spsb..beta. subtype; they are therefore useful in the treatment and/or prevention of clinical conditions, in particular migraine and associated disorders, for which a subtype-selective agonist of 5-HT.sub.1D receptors is indicated, whilst eliciting fewer side-effects, notably adverse cardiovascular events, than those associated with non-subtype-selective 5-HT.sub.1D receptor agonists.
摘要:
The present invention relates to compounds of formula (I), wherein n is zero, 1, 2 or 3; R represents C.sub.1-6 alkyl, C.sub.1-6 alkoxy, hydroxy, halogen, cyano, trifluoromethyl SO.sub.2 C.sub.1-6 alkyl, NR.sup.a R.sup.b, NR.sup.a COR.sup.b or CONR.sup.a R.sup.b, where R.sup.a and R.sup.b are each H, C.sub.1-4 alkyl, phenyl or trifluoromethyl; R.sup.1 represents phenyl optionally substituted by 1, 2 or 3 of C.sub.1-6 alkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, --O(CH.sub.2).sub.p O-- (where p is 1 or 2), halogen, 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, COR.sup.a, CO.sub.2 R.sup.a or CONR.sup.a R.sup.b ; naphthyl; benzhydryl; or benyl, where the naphthyl group or each phenyl moiety of benzyl and benzhydryl may be substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or trifluoromethyl; R.sup.2 represents hydogen, a substituent as defined for R.sup.1 or heteroaryl selected from indazolyl, thienyl, furanyl, pyridyl, thiazolyl, tetrazolyl and quinolinyl; wherein each heteroaryl may be substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or trifluoromethyl; R.sup.3 and R.sup.4 are each H or C.sub.1-6 alkyl or R.sup.3 and R.sup.4 together are linked so as to form a C.sub.1-3 alkylene chain; R.sup.5 represents H, C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, C.sub.3-7 cycloalkylC.sub.1-4 alkyl, phenylC.sub.1-4 alkyl, CO.sub.2 R.sup.a, CONR.sup.a R.sup.b, SOR.sup.a or SO.sub.2 R.sup.a, wherein the phenyl moiety may be substituted by C.sub.1-6 alkyl, C.sub.1-6 alkoxy, halogen or trifluoromethyl; X and Y are each H, or together represents .dbd.O; and Z represents a bond, O, S, SO, SO.sub.2, NR.sup.6, or --(CR.sup.6 R.sup.6)-- where R.sup.6 is H or C.sub.1-6 alkyl; or a pharmaceutically acceptable salt thereof. The compounds are of particular use in the treatment or prevention of pain, inflammation, migraine, emesis and postherpetic neuralgia. ##STR1##
摘要:
A class of novel oxadiazoles, substituted on one of the ring carbon atoms with a non-aromatic azacyclic or azabicyclic ring, and substituted on the other ring carbon atom with a substituent of low lipophilicity; are potent muscarinic agonists, and have good CNS penetrability. The compounds are therefore useful in the treatment of neurological and mental illnesses.
摘要:
A compound having the formula (1) wherein: R1 is a group selected from C3-8 cycloalkyl, C1-6 alkyl, C1-6 alkylene-C3-8 cycloalkyl, each of which groups may optionally be substituted with C1-6 alkyl, halogen, haloC1-6 alkyl or OR15, or R1 is heterocyclyl, optionally substituted with C1-6 alkyl, haloC1-6 alkyl or OR15; n is 0, 1, 2, 3 or 4, the alkylene group —(CH2)m— formed thereby being optionally substituted with a group selected from C1-4 alkyl, C3-8 cycloalkyl and arylsulfonyl; A is a group selected from —N(R2)CO—, —CON(R2)-, —OC(O)—, —C(O)O—, —CO—, —C(R2)(OR3)-, —C(═N—O—R3)-, —C(═CR2R3)-, —C3-8 cycloalkylene-, —C(R2)(haloC1-6alkyl)-, C1-4 alkylene and —C(OR3)(haloC1-6alkyl)-; R2 and R3 are each independently selected from H, C1-6 alkyl, and C3-8 cycloalkyl, or, when A is —N(R2)CO— and X is absent, R2 may form, together with the adjacent nitrogen atom and Z, an N-containing heterocyclyl group, which may optionally be substituted; X is absent or is C14 alkylene or C24 alkenylene, each of which may optionally be substituted with one or more C1-4 alkyl groups, OR16, halogen or haloC1-6 alkyl; Z is selected from aryl, heteroaryl, C3-8 cycloalkyl, and heterocyclyl, each of which may optionally be substituted by a group selected from —Y-aryl, heteroaryl, —Y—C3-8 cycloalkyl and —Y-heterocyclyl, or, when X is present, Z may be H, or, when X is absent and A is —C(R2)(OR3)- or —N(R2)CO—, Z may be H, or, when A is —N(R2)CO— and X is absent, Z may form, together with the adjacent nitrogen atom and R2, an N-containing heterocyclyl group which may optionally be substituted, wherein, when A is —CO—, Z is linked to X or A via a carbon atom and wherein, when A is —N(R2)CO— and Z is H, R1 is C3-8 cycloalkyl; and Y represents a bond, C1-6 alkylene, CO, NR14, COC2-6 alkenylene, O, SO2 or NHCOC1-6 alkylene; wherein said cycloalkyl, aryl, heteroaryl and heterocyclyl groups Z may be optionally substituted by one or more substituents which may be the same or different, and which are selected from halogen, haloC1-6 alkyl, hydroxy, cyano, nitro, ═O, —R4, —CO2R4, —COR4, —NR5R6, —C1-6 alkyl-NR5R6, —C3-8 cycloalkyl-NR5R6, —CONR12R13, —NR12COR13, —NR5SO2R6, —OCONR5R6, —NR5CO2R6, —NR4CONR5R6 or —SO2NR5R6-SHR8, -alkyl-OR8, —SOR8, —OR9, —SO2R9, —OSO2R9, -alkyl-SO2R9, -alkyl-CONHR9, -alkyl-SONHR9, -alkyl-COR10, —CO-alkyl-R10, —O-alkyl-R11 (wherein R4, R5 and R6 independently represent hydrogen, C1-6 alkyl, —C3-8 cycloalkyl, —C1-6 alkylene-C3-8 cycloalkyl, aryl, heterocyclyl or heteroaryl, wherein R8 represents C1-6 alkyl, wherein R9 represents C1-6 alkyl or aryl, wherein R10 represents aryl, wherein R11 represents C3-8 cycloalkyl or aryl, R12, R13, R14, R15 and R16 each independently represent H or C1-6 alkyl, and wherein —NR5R6 and —NR12R13 may represent a nitrogen containing heterocyclyl group); wherein said R4, R5, R6 R8, R9, R11 and R11 groups may be optionally substituted by one or more substituents which may be the same or different, and which are selected from the group consisting of halogen, hydroxy, C1-6 alkyl, C1-6 alkoxy, cyano, amino, ═O or trifluoromethyl; and wherein substituents of Z selected from —Y-aryl, —Y-heteroaryl, —Y—C3-8cycloalkyl and —Y-heterocyclyl may be optionally substituted by one or more substituents selected from ═O, hydroxy, cyano, nitro, halogen, haloC1-6 alkyl and C1-6alkyl; and wherein, when A is C1-4 alkylene, said cycloalkyl, aryl, heteroaryl or heterocyclyl group Z (such as a heterocyclyl group Z) is substituted at least with hydroxy, CF3, or ═O; and wherein, when A is CON(R2) n is 1; or a pharmaceutically acceptable salt or ester thereof, provided that: when A is —CO—, R1 is CH3, C3-8 cycloalkyl-substituted C1-6 alkylene or n-butyl, n is 0 and X is —CH2CH2—, Z is not N-benzyl substituted 4-piperidinyl, N-(3-fluorobenzyl)-substituted 4-piperidinyl or N-acetyl substituted 4-piperidinyl; when A is —OC(O)—, R1 is cyclobutyl, n is 0 and X is —CH2CH2—, Z is not H; when A is —OC(O)—, R1 is n-propyl, n is 0 and X is —CH2—, Z is not H; and when A is —CO—, R1 is CH3, n is 0 and X is CH2, Z is not H.
摘要:
Compounds of formula I: are potent and selective antagonists of the 5-HT2A receptor, and hence are useful in treatment of various 10 CNS disorders.
摘要:
A substituted triazolopyridazine derivative, its use in cognition enhancement therapy, compositions containing it and processes for its manufacture.
摘要:
The present invention relates to compounds of formula (I), and pharmaceutically acceptable salts and prodrugs thereof, wherein X represents a propylene or propenylene chain optionally substituted by one or more of R.sup.4, R.sup.5, R.sup.6 and R.sup.7 ; m is 2, 3 or 4; n is 0, 1 or 2 when m is 2 or 3, and n is 0 or 1 when m is 4; R.sup.1 represents optionally substituted phenyl; R.sup.2 represents optionally substituted phenyl, heteroaryl, benzhydryl or benzyl; R.sup.3 represents H, COR.sup.9, CO.sub.2 R.sup.10, COCONR.sup.10 R.sup.11, COCO.sub.2 R.sup.10, SO.sub.2 R.sup.15, CONR.sup.10 SO.sub.2 R.sup.15, C.sub.1-6 alkyl optionally substituted by a group selected from (CO.sub.2 R.sup.10, CONR.sup.10 R.sup.11, hydroxy, cyano, COR.sup.9, NR.sup.10 R.sup.11, C(NOH)NR.sup.10 R.sup.11, CONHphenyl(C.sub.1-4 alkyl), COCO.sub.2 R.sup.10, COCONR.sup.10 R.sup.11, SO.sub.2 R.sup.15, CONR.sup.10 SO.sub.2 R.sup.15 and optionally substituted phenyl), Y--R.sup.8 or CO--Z--(CH.sub.2).sub.q --R.sup.12 ; R.sup.4 and R.sup.5 each independently represent H, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-5 cycloalkylmethyl, hydroxy or C.sub.1-6 alkoxy, or R.sup.4 and R.sup.5 together form a group .dbd.O; R.sup.6 and R.sup.7 each independent represents H, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-5 cycloalkylmethyl, hydroxy or C.sub.1-6 alkoxy or R.sup.6 and R.sup.7 together form a group .dbd.O; R.sup.8 represents an optionally substituted aromatic heterocycle; R.sup.9 represents H, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-5 cycloalkylmethyl, or phenyl; R.sup.10 and R.sup.11 each independently represent H, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl or C.sub.3-5 cycloalkylmethyl; R.sup.12 represents NR.sup.13 R.sup.14 or an optionally substituted aromatic or non-aromatic azacyclic or azabicyclic group; R.sup.13 and R.sup.14 each independently represent H, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-5 cycloalkylmethyl, optionally substituted phenyl or phenylC.sub.1-4 alkyl; R.sup.15 represents C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.3-5 cycloalkylmethyl, trifluoromethyl or optionally substituted phenyl; Y represents a hydrocarbon chain of 1, 2, 3 or 4 carbon atoms which may optionally be substituted by oxo; Z represents CH.sub.2, O, S or NR.sup.10 ; and q represents 0, 1, 2, 3, 4, 5 or 6. The compounds are tachykinin antagonists useful for treating pain or inflammation, migraine or emesis.