5-Nitroimidazole-based 1,3,4-Thiadiazoles: Heterocyclic Analogs of Metronidazole as Anti-Helicobacter pylori Agents
作者:Mohammad Hassan Moshafi、Maedeh Sorkhi、Saeed Emami、Maryam Nakhjiri、Azadeh Yahya-Meymandi、Amir Soheil Negahbani、Farideh Siavoshi、Maryam Omrani、Eskandar Alipour、Mohsen Vosooghi、Abbas Shafiee、Alireza Foroumadi
DOI:10.1002/ardp.201000013
日期:2011.3
piperazinyl, 4‐methylpiperazinyl, 3‐methylpiperazinyl, and 3,5‐dimethylpiperazinyl analogs (6a, 6b, 6e, and 6f, respectively) and pyrrolidine derivative 7 had strong activity at 0.5 µg/disc (average of inhibition zone >20 mm) while metronidazole had no activity at this dose. Compound 6f containing the 3,5‐dimethylpiperazinyl moiety at the 2‐position of the 5‐(1‐methyl‐5‐nitro‐1H‐imidazol‐2‐yl)‐1,3,4‐thiadiazole
制备了一系列以 5-硝基咪唑为基础的 1,3,4-噻二唑并测试了对幽门螺杆菌的抗菌活性。反H. 通过比较由纸盘扩散生物测定确定的抑菌圈直径,评估了目标化合物与市售抗菌甲硝唑的幽门螺杆菌活性。从我们对 20 个临床分离株的生物测定结果来看,很明显哌嗪基、4-甲基哌嗪基、3-甲基哌嗪基和 3,5-二甲基哌嗪基类似物(分别为 6a、6b、6e 和 6f)和吡咯烷衍生物 7 在 0.5 时具有很强的活性µg/圆片(平均抑菌圈> 20 mm)而甲硝唑在此剂量下无活性。在5-(1-甲基-5-硝基-1H-咪唑-2-基)-1,3的2-位含有3,5-二甲基哌嗪基部分的化合物6f,