申请人:Merck Sharp & Dohme Ltd.
公开号:US06444666B1
公开(公告)日:2002-09-03
A compound of formula I, or a salt or prodrug thereof:
wherein:
Z represents C1-6 alkyl, C3-7 cycloalkyl, C4-7 cycloalkenyl, aryl, C3-7 heterocycloalkyl, heteroaryl or di(C1-6)alkylamino, any of which groups may be optionally substituted;
R1 represents an optionally substituted five-membered heteroaromatic ring selected from oxazole, thiazole, isoxazole, isothiazole, imidazole, pyrazole, oxadiazole, thiadiazole, triazole and tetrazole; or
R1 represents an optionally substituted six-membered heteroaromatic ring selected from pyrazine, pyrimidine and pyridazine; and
R2 represents cyano(C1-6)alkyl, hydroxy(C1-6)alkyl, C3-7 cycloalkyl(C1-6)alkyl, propargyl, C3-7 heterocycloalkylcarbonyl(C1-6)alkyl, aryl(C1-6)alkyl or heteroaryl(C1-6)alkyl, any of which groups may be optionally substituted; its use in treating anxiety and pharmaceutical compositions comprising it; a subclass of compounds which are useful in enhancing cognition, such as Alzheimer's Disease, is also disclosed.
式I的化合物,或其盐或前药:其中:Z代表C1-6烷基,C3-7环烷基,C4-7环烯基,芳基,C3-7杂环烷基,杂芳基或双(C1-6)烷基
氨基,其中任何一个基团均可选择性地被取代;R1代表可选择性取代的五元杂芳香环,所选的环包括
噁唑,
噻唑,
异噁唑,异
硫唑,
咪唑,
吡唑,
噻二唑,
噻二唑,三唑和
四唑;或R1代表可选择性取代的六元杂芳香环,所选的环包括
吡嗪,
嘧啶和
吡嗪啉;且R2代表
氰基(C1-6)烷基,羟基(C1-6)烷基,C3-7环烷基(C1-6)烷基,
丙炔基,C3-7杂环烷基羰基(C1-6)烷基,芳基(C1-6)烷基或杂芳基(C1-6)烷基,其中任何一个基团均可选择性地被取代;其在治疗焦虑症方面的用途及包含该化合物的制药组合物;还公开了一类有益于增强认知能力的化合物,如阿尔茨海默病。