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    • 42. 发明申请
    • ARYL-ISOXAZOL-4-YL-IMIDAZO[1,2-A]PYRIDINE USEFUL FOR THE TREATMENT OF ALZHEIMER’S DISEASE VIA GABA RECEPTORS
    • ARYL-ISOXAZOL-4-YL-IMIDAZO [1,2-A]吡啶可用于通过GABA受体治疗阿尔茨海默病
    • WO2007082806A1
    • 2007-07-26
    • PCT/EP2007/050137
    • 2007-01-08
    • F. HOFFMANN-LA ROCHE AGBUETTELMANN, BerndHAN, BoKNUST, HennerTHOMAS, Andrew
    • BUETTELMANN, BerndHAN, BoKNUST, HennerTHOMAS, Andrew
    • C07D471/04A61K31/437A61P25/28
    • C07D471/04
    • The present invention is concerned with aryl-isoxazol-4-yl-imidazo[1,2-a]pyridine derivatives of formula (I): wherein R 1 is hydrogen, halogen, hydroxy, lower alkyl, benzyloxy or -O-(CH 2 )-(CO)-5 or 6 membered heteroaryl optionally substituted by aryl or by lower alkyl; R 2 is hydrogen, halogen, lower alkyl, lower alkynyl, amino, -NHC(O)-R a or -(CO)-R a ; R 3 is hydrogen, halogen, cyano, lower alkyl, lower alkynyl, amino, -NHC(O)-R a , -(CO)-R a , -5 or 6-membered heterocycloalkyl in 1-position, optionally substituted 10 by =O or is a -5 or 6-membered heteroaryl in 1-position; R 4 is hydrogen or -5 or 6-membered heteroaryl; R 5 is lower alkyl or cycloalkyl; R a is lower alkoxy or NR'R'', wherein R' and R'' are each independently hydrogen, lower alkyl optionally substituted by hydroxy, lower alkynyl, -(CH 2 ) n -cycloalkyl, 15 -(CH 2 ) n -5 or 6-membered heterocycloalkyl or -(CH 2 ) n -5 or 6-membered heteroaryl; n is 0 to 3; as well as pharmaceutically acceptable acid addition salts thereof. It has been found that this class of compounds show high affinity and selectivity for GABA A α5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
    • 本发明涉及式(I)的芳基 - 异恶唑-4-基 - 咪唑并[1,2-a]吡啶衍生物:其中R 1是氢,卤素,羟基,低级烷基, 任选被芳基或低级烷基取代的苄氧基或-O-(CH 2 - ) - (CO)-5或6元杂芳基; R 2是氢,卤素,低级烷基,低级炔基,氨基,-NHC(O)-R a或 - (CO)-R a, SUP>; R 3是氢,卤素,氰基,低级烷基,低级炔基,氨基,-NHC(O)-R a, - (CO)-R a 1-位的-5或6-元杂环烷基,任选地被10取代或被1位置的5或6元杂芳基取代; R 4是氢或-5或6元杂芳基; R 5是低级烷基或环烷基; R“是低级烷氧基或NR'R”,其中R'和R“各自独立地为氢,任选被羟基取代的低级烷基,低级炔基, - (CH 2) 15 - (CH 2)n - 或 - 或 - 6元杂环烷基或 - (CH 2) -5或6元杂芳基; n为0〜3; 以及其药学上可接受的酸加成盐。 已经发现,这类化合物显示出对GABA A a5受体结合位点的高亲和力和选择性,并且可用作认知增强剂或用于治疗认知障碍如阿尔茨海默氏病。
    • 43. 发明申请
    • ISOXAZOLO DERIVATIVES AS GABA A ALPHA5 INVERSE AGONISTS
    • ISOXAZOLO衍生物作为GABA ALPHA5反相激动剂
    • WO2007039389A1
    • 2007-04-12
    • PCT/EP2006/066094
    • 2006-09-07
    • F. HOFFMANN-LA ROCHE AGBUETTELMANN, BerndHAN, BoHENNER, KnustNETTEKOVEN, MatthiasTHOMAS, Andrew
    • BUETTELMANN, BerndHAN, BoHENNER, KnustNETTEKOVEN, MatthiasTHOMAS, Andrew
    • C07D413/14C07D413/06C07D451/06A61P25/28A61K31/42
    • C07D413/14C07D413/06C07D451/06
    • The present invention is concerned with aryl-isoxazole-4-carbonyl-pyrrole-2-carboxylic acid amide derivatives of formula (I) wherein R 1 is hydrogen, halogen, lower alkoxy, phenyloxy or benzyloxy; R 2 is lower alkyl, (CH2)n-O-lower alkyl or phenyl; R 3 is hydrogen or lower alkyl; R 4 /R 5 are independently from each other hydrogen, lower alkyl, lower alkyl substituted by halogen, lower alkynyl or -(CHR)n-aryl, unsubstituted or substituted by halogen, lower alkyl or lower alkoxy, -(CH 2 ) n -non aromatic heterocyclic ring, unsubstituted or substituted by one or two lower alkyl groups, -(CH 2 ) n -aromatic heterocyclic rings -(CR 2 ) n -cycloalkyl, unsubstituted or substituted by one to three substituents, selected from the group consisting of hydroxy or lower alkyl, -(CHR) n -O-lower alkyl, -(CR 2 ) n -OH, -(CHR) n -NR’R", or R 4 /R 5 form together with the N-atom to which they are attached the ring - 8-aza-bicyclo[3.2.1] octane, substituted by hydroxy, or - 3,4-dihydro- l H -isoquinoline, or - a non aromatic heterocyclic ring, unsubstituted or substituted by one or two substituents, selected from the group consisting of C(O)O-lower alkyl, lower alkyl, lower alkyl substituted by halogen, cycloalkyl, hydroxy, halogen, N(R)C(O)-lower alkyl, -(CΗ 2 ) n -O-lower alkyl, or by an aromatic heterocyclic ring; R is hydrogen, hydroxy, or lower alkyl, wherein R may be the same or different in case of R 2 ; R’/R" are independently from each other hydrogen or lower alkyl; n is O, 1, 2, 3 or 4; m is 1, 2 or 3; and with their pharmaceutically acceptable acid addition salts. It has been found that this class of compounds show high affinity and selectivity for GABA Aα5 receptor binding sites and might be useful as cognitive enhancer or for the treatment of cognitive disorders like Alzheimer's disease.
    • 本发明涉及式(I)的芳基 - 异恶唑-4-羰基 - 吡咯-2-羧酸酰胺衍生物,其中R 1是氢,卤素,低级烷氧基,苯氧基或苄氧基; R 2是低级烷基,(CH 2)n -O-低级烷基或苯基; R 3是氢或低级烷基; R 4和R 5彼此独立地为氢,低级烷基,被卤素取代的低级烷基,低级炔基或 - (CHR)n - 芳基,未取代或被 卤素,低级烷基或低级烷氧基, - 未被取代或被一个或两个低级烷基取代的 - (CH 2 N 2)n - 芳族杂环, - (CH