申请人:Hoffmann-La Roche Inc.
公开号:US20160326144A1
公开(公告)日:2016-11-10
The present invention relates to compounds of formula
wherein
R
1
is C
4-6
-cycloalkyl or C
4-6
-heterocycloalkyl, which are optionally substituted by one or two substituents, selected from hydroxy or lower alkyl;
A is phenyl, pyridinyl or piperidinyl;
R
2
is hydrogen, halogen, lower alkyl, cyano, C
4-6
-cycloalkyl, lower alkoxy, lower alkoxy substituted by halogen, or is a five- or six-membered heteroaryl, optionally substituted by lower alkyl;
n is 1 or 2;
or to a pharmaceutically acceptable acid addition salt, to a racemic mixture or to its corresponding enantiomer and/or optical isomers thereof.
The compounds may be used for the treatment or prophylaxis of Alzheimer's disease, cognitive impairment, schizophrenia, pain or sleep disorders.
本发明涉及通式化合物,其中R1为C4-6环烷基或C4-6杂环烷基,其任选地被一个或两个选自羟基或低级烷基的取代基取代;A为苯基、吡啶基或哌啶基;R2为氢、卤素、低级烷基、氰基、C4-6环烷基、低级烷氧基、被卤素取代的低级烷氧基,或为任选地被低级烷基取代的五元或六元杂芳基;n为1或2;或涉及药学上可接受的酸加成盐、外消旋混合物或其相应的对映体和/或光学异构体。这些化合物可用于治疗或预防阿尔茨海默病、认知障碍、精神分裂症、疼痛或睡眠障碍。