This invention provides a compound of the following formula:
or salts thereof,
and a compound of the following formula:
or salts thereof,
wherein Y1, Y2, Y3 and Y4 are independently selected from N, CH, etc.; R1 is H, C1-8 alkyl, etc.; A is an optionally substituted benzene or pyridine ring; B is C2-6 alkylene etc.; W is NH or O; and P is H, protecting group etc.. These compounds are useful as intermediates for the preparation of compounds for the treatment of medical conditions mediated by prostaglamndin such as pain, fever or inflammation, etc.
本发明提供了一种下式化合物:
或其盐类、
和下式化合物:
或其盐、
其中 Y1、Y2、Y3 和 Y4 独立选自 N、CH 等;R1 是 H、C1-8 烷基等;A 是任选取代的苯环或
吡啶环;B 是 C2-6 亚烷基等;W 是 NH 或 O;P 是 H、保护基等。这些化合物可作为中间体,用于制备治疗由
前列腺素介导的病症(如疼痛、发热或炎症等)的化合物。