The present invention relates to novel thiazole and oxazole derivatives having a positive allosteric GABA
B
receptor (GBR) modulator effect, methods for the preparation of said compounds and to their use, optionally in combination with a GABA
B
agonist, for the inhibition of transient lower esophageal sphincter relaxations, for the treatment of gastroesophageal reflux disease, as well as for the treatment of functional gastrointestinal disorders and irritable bowel syndrome (IBS). The compounds are represented by the general formula (I) wherein X
1
and X
2
are selected from 0 and N or S and N and R
1
, R
2
and Y are as defined in the description. For example, R
1
may be alkyl, alkoxy, thioalkoxy or aryl, R
2
may be alkoxy and Y may be a carbonylamino-linked substituent containing an aryl or heteroaryl group.
本发明涉及具有正向变构
GABAB受体(GBR)调节剂作用的新型
噻唑和
噁唑衍
生物,以及制备这些化合物的方法和它们的用途,可选与
GABAB激动剂结合,用于抑制短暂性下食管括约肌松弛,用于治疗胃食管反流病,以及用于治疗功能性胃肠疾病和肠易激综合征(IBS)。该化合物由一般式(I)表示,其中X1和X2从0和N或S和N中选择,R1、R2和Y如描述中所定义。例如,R1可以是烷基、烷氧基、
硫代烷氧基或芳基,R2可以是烷氧基,Y可以是含有芳基或杂环芳基的羰基
氨基取代基。