申请人:Jaeschke Georg
公开号:US20120277243A1
公开(公告)日:2012-11-01
The present invention relates to ethynyl derivatives of formula I
wherein G, X, R
1
, R
2
, R
3
, R
3′
, R
4
, and R
4′
are as defined herein
or to a pharmaceutically acceptable acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer and/or stereoisomer thereof. Compounds of formula I are positive allosteric modulators (PAM) of the metabotropic glutamate receptor subtype 5 (mGluR5).
本发明涉及公式I的乙炔衍生物,其中G、X、R1、R2、R3、R3'、R4和R4'如本文所定义,或者涉及其药学上可接受的酸盐加合物,或者涉及其相应的外消旋体和/或光学异构体和/或立体异构体。公式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)。