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    • 52. 发明授权
    • 2,3-Diaryl-pyrazolo[1,5-b]pyridazines derivatives, their preparation and their use as cyclooxygenase 2(COX-2) inhibitors
    • 2,3-二芳基 - 吡唑并[1,5-b]哒嗪衍生物,其制备及其作为环氧合酶2(COX-2)抑制剂的用途
    • US06451794B1
    • 2002-09-17
    • US09508029
    • 2000-06-13
    • Paul John BeswickIan Baxter CampbellNeil MathewsAlan Naylor
    • Paul John BeswickIan Baxter CampbellNeil MathewsAlan Naylor
    • A61K314985
    • C07D487/04A61K31/50Y02P20/55
    • The invention provides the compounds of formula (I) and pharmaceutically acceptable derivatives thereof in which: R0 is halogen, C1-6alkyl, C1-6alkoxy, C1-6alkoxy substituted by one or more fluorine atoms, or O(CH2)nNR4R5; R1 and R2 are independently selected from H, C1-6alkyl, C1-6alkyl, substituted by one or more fluorine atoms, C1-6alkoxy, C1-6hydroxyalkyl, SC1-6alkyl, C(O)H, C(O)C1-6alkyl, C1-6alkylsulphonyl, C1-6alkoxy substituted by one or more fluorine atoms, O(CH2)nCO2C1-6alkyl, O(CH2)nSC1-6alkyl, (CH2)nNR4R5, (CH2)nSC1-6alkyl or C(O)NR4R5; with the proviso that when R0 is at the 4-position and is halogen, at least one of R1 and R2 is C1-6alkylsulphonyl, C1-6alkoxy substituted by one or more fluorine atoms, O(CH2)nCO2C1-6alkyl, O(CH2)nSC1-6alkyl, (CH2)nNR4R5 or (CH2)nSC1-6alkyl, C(O)NR4R5; R3 is C1-6alkyl or NH2; R4 and R5 are independently selected from H, or C1-6alkyl or, together with the nitrogen atom to which they are attached, form a 4-8 membered saturated ring; and n is 1-4. Compounds of formula (I) are potent and selective inhibitors of COX-2 and are of use in the treatment of the pain, fever, inflammation of a variety of conditions and diseases.
    • 本发明提供式(I)化合物及其药学上可接受的衍生物,其中:R 0是卤素,C 1-6烷基,C 1-6烷氧基,被一个或多个氟原子取代的C 1-6烷氧基或O(CH 2)n NR 4 R 5; R 1和R 2独立地选自被一个或多个氟原子取代的H,C 1-6烷基,C 1-6烷基,C 1-6烷氧基,C 1-6羟烷基,SC 1-6烷基,C(O)H,C(O)C 1-6烷基 (C 1-6烷基磺酰基),被一个或多个氟原子取代的C 1-6烷氧基,O(CH 2)n CO 2 C 1-6烷基,O(CH 2)nSC 1-6烷基,(CH 2)n NR 4 R 5,(CH 2)nSC 1-6烷基或C(O)NR 4 R 5; 条件是当R 0在4-位且是卤素时,R 1和R 2中的至少一个是C 1-6烷基磺酰基,被一个或多个氟原子取代的C 1-6烷氧基,O(CH 2)n CO 2 C 1-6烷基,O(CH 2) )nSC1-6烷基,(CH2)nNR4R5或(CH2)nSC1-6烷基,C(O)NR4R5; R3是C1-6烷基或NH2; R 4和R 5独立地选自H或C 1-6烷基,或与它们所连接的氮原子一起形成4-8元饱和环; n为1-4。 式(I)化合物是COX-2的有效和选择性抑制剂,可用于治疗疼痛,发热,各种病症和疾病的炎症。