A series of [2-[p-(un) substituted phenyl] imidazo [2, 1-b] benzothiazol-3-yl] acetic acid derivativeswas prepared.The 2-[p-(un) substituted phenyl]imidazo [2, 1-b] benzothiazoles (2a-e) were firstconverted to the corresponding 3-(dimethylaminomethyl) Mannich bases (3a-e), which in turnwere converted to the methiodide salts (4a-d) and thence to the desired products (7a-e), (see Chart 1). Some of the acetic acid derivatives (7a, c, d) were tested for analgesic and antiinflammatoryactivities by means of carrageenin-induced paw edema, streching induced by acetic acid andcapillary permeability inhibition assays.
制备了一系列[2-[p-(未)取代苯基]
咪唑并[2,1-b]
苯并噻唑-3-基]
乙酸衍
生物。首先将 2-[对-(未)取代苯基]
咪唑并[2,1-b]
苯并噻唑(2a-e)转化为相应的 3-(二
甲基氨基甲基)曼尼希碱(3a-e),然后再将其转化为
碘甲烷盐(4a-d),进而转化为所需产物(7a-e)(见图 1)。部分
醋酸衍
生物(7a、c、d)通过角叉菜胶诱导的爪
水肿、
醋酸诱导的条纹和毛细血管通透性抑制实验进行了镇痛和抗炎活性测试。