The present invention relates to a compound of formula (IA), wherein G1 is lower alkyl; lower alkyl substituted by one or more halogens; cycloalkyl; tetrahydropyran-4-yl; phenethyl; phenethyl substituted by one or more halogens; phenoxymethyl; phenoxymethyl substituted by one or more halogens; benzyloxyethyl; benzyloxy-ethyl substituted by one or more halogens; or is -NR2R3; R2 is hydrogen or lower alkyl; R3 is lower alkyl; tetrahydropyran-4-yl; -CH2-cycloalkyl; or cycloalkyl optionally substituted by lower alkyl substituted by one or more halogens; or R2 and R3 form together with the N-atom to which they are attached a heterocycloalkyl group with 4 or 5 carbon atoms, which is optionally substituted by one or more substituents selected from halogen; or lower alkyl substituted by one or more halogens; X is -CH2- or -(CH2)2-; Ar is phenyl or pyridinyl; R4 is halogen; lower alkyl; lower alkyl substituted by one or more halogens; or lower alkoxy; n is 1 or 2; or to a pharmaceutically active salt thereof, to a stereoisomeric form, including an individual diastereoisomer or enantiomer of the compound of formula (IA) as well as to a racemic or non-racemic mixture thereof. The present invention also relates to the use of a compound of formula (IA) for treating certain neurodegenerative disorders characterized by cytotoxic TAU misfolding and/or aggregation.
本发明涉及一种具有以下结构的化合物(IA),其中G1是较低的烷基;较低的烷基上被一个或多个卤素取代;环烷基;
四氢吡喃-4-基;苯乙基;一个或多个卤素取代的苯乙基;苯氧甲基;一个或多个卤素取代的苯氧甲基;苄氧乙基;一个或多个卤素取代的苄氧乙基;或者是-NR2R3;R2是氢或较低的烷基;R3是较低的烷基;
四氢吡喃-4-基;-
CH2-环烷基;或者是环烷基,可选地被一个或多个卤素取代的较低烷基取代;或者R2和R3与它们连接的N原子一起形成一个由4或5个碳原子组成的杂环烷基基团,该基团可选地被一个或多个卤素选自取代;或者一个或多个卤素取代的较低烷基;X是- -或-( )2-;Ar是苯基或
吡啶基;R4是卤素;较低的烷基;一个或多个卤素取代的较低烷基;或者较低的烷氧基;n是1或2;或者是其药用活性盐,立体异构体形式,包括化合物(IA)的单个对映异构体或对映体,以及其消旋或非消旋混合物。本发明还涉及使用化合物(IA)治疗由细胞毒性TAU蛋白错误折叠和/或聚集特征的某些神经退行性疾病。