The present invention relates to ethynyl derivatives of formula (I) wherein Y is N or CH R1 is fluoro or chloro 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. It has now surprisingly been found that the compounds of general formula (I) are metabotropic glutamate receptor antagonists (negative allosteric modulators) for use in the treatment of anxiety and pain, depression, Fragile-X syndrom, autism spectrum disorders, Parkinson's disease, and gastroesophageal reflux disease (GERD)
本发明涉及公式(I)的
乙炔衍
生物,其中Y为N或CH,R1为
氟、
氯或药学上可接受的酸加成盐,或其对映体和/或光学异构体和/或立体异构体的混合物。现已惊奇地发现,一般式(I)化合物是代谢型谷
氨酸受体拮抗剂(负向变构调节剂),可用于治疗焦虑和疼痛、抑郁症、脆性X综合症、自闭症谱系障碍、帕
金森病和胃食管反流病(GERD)。