Histamine h3 receptor antagonist, used for the preparation and treatment

The present invention of formula (I): [Formula 1] Represented by, acceptable salt novel compound or a pharmaceutically having histamine H3 receptor antagonist activity, and discloses a method of making such compounds. In another embodiment, the present invention discloses a method of using them to treat a pharmaceutical composition containing a compound of formula (I), as well as obesity and other histamine H3 receptor-related diseases.