申请人:Dainippon Sumitomo Pharma Co., Ltd.
公开号:EP2272835A1
公开(公告)日:2011-01-12
Disclosed is a five-membered ring compound represented by formula (1) or a pharmaceutically acceptable salt thereof. The compound inhibits infiltration of leukocytes including eosinophils and lymphocytes, and is effective as a drug for treating various inflammations. The compound is highly safe and can be administered for a long period. A pharmaceutical product containing the five-membered ring compound or a pharmaceutically acceptable salt thereof is also disclosed.
(In the formula, R1 represents a halogen atom or a phenyl group which may be substituted by a C1-C3 alkyl group or a C1-C3 alkoxy group; R2 represents a C1-C3 alkylene group which may be substituted by a C1-C3 alkyl group or a carbonyl group; R3 represents a C1-C3 alkyl group; R4 and R5 independently represent a hydrogen atom or a C1-C3 alkyl group, or -N(R4)R5 may represent a morpholino group which may be substituted by a C1-C3 alkyl group; Y2 represents a C2-C4 alkylene group; and R6 represents a hydrogen atom, a halogen atom, a C1-C3 alkyl group or a C1-C3 alkoxy group.)
揭示了一种由式(1)表示的五元环化合物或其药用可接受的盐。该化合物抑制包括嗜酸性粒细胞和淋巴细胞在内的白细胞浸润,并且作为治疗各种炎症的药物非常有效。该化合物非常安全,并且可以长期使用。还公开了含有该五元环化合物或其药用可接受的盐的药物产品。(在式中,R1代表卤素原子或可能被C1-C3烷基或C1-C3烷氧基取代的苯基;R2代表可能被C1-C3烷基或羰基取代的C1-C3烷基;R3代表C1-C3烷基;R4和R5独立地代表氢原子或C1-C3烷基,或-N(R4)R5可能代表可能被C1-C3烷基取代的吗啡基;Y2代表C2-C4烷基;R6代表氢原子、卤素原子、C1-C3烷基或C1-C3烷氧基。)