申请人:SANTEN PHARMACEUTICAL CO., LTD.
公开号:US20010041725A1
公开(公告)日:2001-11-15
An object of the present invention is to provide novel urea derivatives which have TNF-&agr; production inhibitory effects and are useful as therapeutic agents for various diseases, particularly as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. The urea derivatives according to the present invention are compounds represented by the formula [I] and salts thereof. In the formula, R
1
is H, alkyl, phenyl or a group of the formula [`I]; R
2
is H, alkyl, carboxyl or ester thereof or the like; R
3
and R
4
are each H, alkyl, cycloalkyl or the like; R
5
is H, alkyl, hydroxy or the like; R
6
is a nitrogen aromatic heterocycle; and A
1
and A
2
are alkylene.
1
本发明的目的是提供一种新的尿素衍生物,其具有TNF-α生产抑制作用,并可用作各种疾病的治疗剂,特别是作为自身免疫性疾病(如类风湿性关节炎)的治疗剂。本发明的尿素衍生物是由式[I]及其盐所表示的化合物。在该式中,R1为H、烷基、苯基或式[I]的基团;R2为H、烷基、羧基或其酯等;R3和R4分别为H、烷基、环烷基或类似物;R5为H、烷基、羟基或类似物;R6为氮杂环芳基;A1和A2为烷基。