申请人:HOFFMANN LA ROCHE
公开号:WO2011073172A1
公开(公告)日:2011-06-23
The present invention relates to ethynyl derivatives of formula (I) wherein X is N or C-R1; Y is N or C-R2; Z is CH or N; R4 is a 6-membered aromatic substituent containing 0, 1 or 2 nitrogen atoms, optionally substituted by 1 to 3 groups, selected from halogen, lower alkyl, lower alkoxy or NRR'; R1 is hydrogen, lower alkyl, lower alkoxy, hydroxy, lower hydroxyalkyl, lower cycloalkyl or is heterocycloalkyl optionally substituted with hydroxy or alkoxy; R2 is hydrogen, CN, lower alkyl or heterocycloalkyl; R and R' are independently from each other hydrogen or lower alkyl; or to a pharmaceutically acceptable salt or acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer and/or stereoisomer thereof. It has now surprisingly been found that the compounds of general formula (I) are positive allosteric modulators (PAM) of the metabotropic glutamate receptor subtype 5 (mGluR5) and they are therefore useful for the treatment of diseases related to this receptor.
本发明涉及公式(I)的乙炔衍生物,其中X为N或C-R1;Y为N或C-R2;Z为CH或N;R4为含有0、1或2个氮原子的6-成员芳香取代基,可选地被1至3个来自卤素、较低烷基、较低烷氧基或NRR'的基团取代;R1为氢、较低烷基、较低烷氧基、羟基、较低羟基烷基、较低环烷基或带有羟基或烷氧基的杂环烷基;R2为氢、CN、较低烷基或杂环烷基;R和R'彼此独立地为氢或较低烷基;或者为药学上可接受的盐或酸加盐物,或为外消旋混合物,或为其相应的对映体和/或光学异构体和/或立体异构体。现已惊讶地发现,一般式(I)的化合物是代谢型谷氨酸受体亚型5(mGluR5)的正向变构调节剂(PAM),因此它们对与该受体相关的疾病的治疗是有用的。