Actimis Pharmaceuticals, Inc.

Tai-wei Ly

Klaus Urbahns

Takashi Yoshino

Kevin Bacon

Takuya Shintani

Hiromi Sugimoto

Yuji Koriyama

Hiroki Sato

Kazuho Tanaka

Yoshihisa Manabe

Masanori Seki

Yuki Takekawa

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. 

Pyrimidine derivatives useful for the treatment of diseases mediated by CRTH2

The present invention relates to an imidazo[1,2-c]pyrimidinylacetic acid derivative and salts thereof which is useful as an active ingredient of pharmaceutical preparations. The imidazo[1,2-c]pyrimidinylacetic acid 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.

Imidazo[1,2-C]pyrimidinylacetic acid derivatives

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San Diego, CA, United States of America

Tai-wei Ly