The present invention relates to compounds of formula I and their pharmaceutically acceptable salts wherein formula I is:
wherein X, Y, Z, R1 and R2 are as defined in the description and claims. The compounds of the present invention act as antagonists and/or inverse agonists at the histamine 3 receptor and are useful for the treatment and/or prevention of diseases such as obesity, metabolic syndrome (syndrome X), and other eating disorders.
本发明涉及I式化合物及其药学上可接受的盐,其中I式如下:其中X、Y、Z、R1和R2如说明书和权利要求所定义。本发明的化合物作为
组胺3受体的拮抗剂和/或反向激动剂,并且用于治疗和/或预防肥胖症、代谢综合征(综合征X)和其他进食障碍等疾病。