The present invention relates to ethynyl compounds of formula I
wherein
R1, R2, R2′, R3, R3′, R4, R4′, U, V, W, Y, m, and n are as defined herein and to a pharmaceutically acceptable acid addition salts, to a racemic mixtures, or to its corresponding enantiomers and/or optical isomers and/or stereoisomers thereof. Compounds of formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).
本发明涉及公式I的
乙炔基化合物,其中R1、R2、R2'、R3、R3'、R4、R4'、U、V、W、Y、m和n如本文所定义,并且涉及其药学上可接受的酸添加盐、外消旋混合物或其对应的对映体和/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)的别构调节剂。