The present patent application concerns new compounds of formula (I) with R
1
and R
2
taken together with the nitrogen atom to which they are attached, form a saturated nitrogen-containing ring, A is a saturated C1-4 alkylene and B a C3-4 alkylene or alkenylene chain; their preparation and their use as a H3 receptor ligand for treating e.g. CNS disorders like Alzheimer's disease.
本专利申请涉及公式(I)的新化合物,其中R1和R2与它们附着的
氮原子一起形成饱和的含
氮环,A是饱和的C1-4烷基,B是C3-4烷基或
烯基链;它们的制备及其用作H3受体
配体,用于治疗例如阿尔茨海默病的中枢神经系统疾病。