申请人:Welfide Corporation
公开号:US06288061B1
公开(公告)日:2001-09-11
The present invention relates to the imidazole derivative of the following formula (I)
wherein R1 is hydrogen, optionally substituted alkyl and the like, R2 is hydrogen, optionally substituted alkyl and the like, R3is optionally substituted heteroaryl, R4 is optionally substituted cycloalkyl, optionally substituted phenyl and the like, provided that when R1 is hydrogen, and R2 and R4 are the same or different and each is phenyl or phenyl substituted by halogen atom, lower alkyl or lower alkoxy, R3 is benzothiazolyl or thiazolyl substituted by phenyl, the imidazole derivative of the following formula (XII)
wherein R6 is optionally substituted phenyl or optionally substituted heteroaryl and R7 is substituted phenyl, and pharmaceutically acceptable salts thereof. The compounds of the formulas (I) and (XII) and pharmaceutically acceptable salts thereof of the present invention inhibit IL-4 and IL-5 production by Th2 cells and are effective for the prophylaxis and treatment of allergic diseases such as atopic dermatitis, bronchial asthma, allergic rhinitis and the like.
本发明涉及以下式(I)的咪唑衍生物
其中R1是氢,可选择地取代的烷基等,R2是氢,可选择地取代的烷基等,R3是可选择地取代的杂芳基,R4是可选择地取代的环烷基,可选择地取代的苯基等,但当R1是氢,且R2和R4相同或不同,且每个是苯基或被卤原子、较低烷基或较低烷氧基取代的苯基时,R3是苯并噻唑基或被苯基取代的噻唑基,以下式(XII)的咪唑衍生物
其中R6是可选择地取代的苯基或可选择地取代的杂芳基,R7是被取代的苯基,以及其药学上可接受的盐。本发明的式(I)和(XII)的化合物及其药学上可接受的盐通过抑制Th2细胞产生IL-4和IL-5,在预防和治疗特应性皮炎、支气管哮喘、过敏性鼻炎等过敏性疾病方面具有有效性。