The invention relates to compounds of formula (I), wherein R, R1, m, n and X1 to X3 have the meaning as cited in the description and the claims. Said compounds are useful as Histamine H3 receptor antagonists. The invention also relates to pharmaceutical compositions, the preparation of such compounds as well as the production and use as medicament.
本发明涉及公式(I)的化合物,其中R,R1,m,n和X1到X3的含义如所述和权利要求所述。所述化合物可用作
组胺H3受体拮抗剂。本发明还涉及制药组合物,制备此类化合物以及作为药物的生产和使用。