The present invention relates to a pyrimidine derivative of the formula (I) and salts thereof which is useful as an active ingredient of pharmaceutical preparations. The pyrimidine derivative of the present invention has excellent CRTH2 (G-protein-coupled chemoattractant receptor, expressed on Th2 cells) antagonistic activity and can be used for the prophylaxis and treatment of diseases associated with CRTH2 activity, in particular for the treatment of allergic diseases, such as asthma, allergic rhinitis, atopic dermatitis, and allergic conjunctivitis; eosinophil-related diseases, such as Churg-Strauss syndrome and sinusitis; basophil-related diseases, such as basophilic leukemia, chronic urticaria and basophilic leukocytosis in human and other mammals; and inflammatory diseases characterized by T lymphocytes and profuse leukocyte infiltrates such as psoriasis, eczema, inflammatory bowel disease, ulcerative colitis, Crohn's disease, COPD (chronic obstructive pulmonary disorder) and arthritis.
本发明涉及一种
嘧啶衍
生物(I)及其盐,可用作制药制剂的有效成分。本发明的
嘧啶衍
生物具有优异的CRTH2(G蛋白偶联
趋化因子受体,在Th2细胞上表达)拮抗活性,可用于预防和治疗与CRTH2活性相关的疾病,特别是用于治疗过敏性疾病,如哮喘、过敏性鼻炎、特应性皮炎和过敏性结膜炎;嗜酸性粒
细胞相关疾病,如Churg-Strauss综合症和鼻窦炎;嗜碱性粒
细胞相关疾病,如嗜碱性白血病、慢性荨麻疹和人类及其他哺乳动物的嗜碱性白细胞增多症;以及以T淋巴细胞和大量白细胞浸润为特征的炎症性疾病,如牛皮癣、湿疹、炎症性肠病、溃疡性结肠炎、克罗恩病、慢性阻塞性肺疾病和关节炎。