申请人:BANYU PHARMACEUTICAL CO., LTD.
公开号:EP1757594A1
公开(公告)日:2007-02-28
This invention provides a compound or its pharmaceutically-acceptable salt of formula (I)
wherein R1 represents a lower alkyl group et al; R2 and R3 are same and different and represents hydrogen atm et al; R4 represents the substituent of the formula (II) et al;
X1 represents NH, O or S; Y represents N or C; Ar is a divalent substituent derived from aryl et al, by removing two hydrogen atoms therefrom; the ring A represents a 5- or 6-membered heteroaryl group; this compounds has a histamine-H3 receptor antagonistic effect or a histamine-H3 receptor inverse-agonistic effect and is useful for preventive or remedy of metabolic system diseases, circulatory system diseases or nervous system diseases.
本发明提供了一种式 (I) 的化合物或其药学上可接受的盐
其中 R1 代表低级烷基等;R2 和 R3 相同或不同,代表氢大气等;R4 代表式(II)的取代基等;
该化合物具有组胺-H3 受体拮抗作用或组胺-H3 受体反拮抗作用,可用于预防或治疗代谢系统疾病、循环系统疾病或神经系统疾病。