Synthesis of thiadiazole derivatives bearing hydrazone moieties and evaluation of their pharmacological effects on anxiety, depression, and nociception parameters in mice
作者:Özgür Devrim Can、Mehlika Dilek Altıntop、Ümide Demir Özkay、Umut İrfan Üçel、Bürge Doğruer、Zafer Asım Kaplancıklı
DOI:10.1007/s12272-012-0410-6
日期:2012.4
Novel thiadiazole derivatives bearing hydrazone moieties were synthesized through the reaction of 2-[(5-methyl-1,3,4-thiadiazol-2-yl)thio)]acetohydrazide with aldehydes/ketones. The chemical structures of the compounds were elucidated by 1H-NMR, 13C-NMR, MS-FAB spectral data, and elemental analyses. Behavioral effects of the test compounds in mice were examined by hole-board, activity cage, tail suspension and modified forced swimming tests (MFST). Antinociceptive activities were evaluated using the hot-plate and tail-clip methods. Results of the experiments indicated that the test compounds did not significantly change the exploratory behaviors or locomotor activities of animals in the hole-board and activity cage tests, respectively. Administration of the reference drug fluoxetine (10 mg/kg) and compounds 3a, 3b, 3c, 3j, 3k, and 3l significantly shortened the immobility times of animals in the tail suspension and MFST tests, indicating the antidepressant-like effects of these derivatives. Morphine (10 mg/kg) and compounds 3a, 3b, 3c, 3d, 3e, 3j, 3k, and 3l increased the reaction times of mice in both the hot-plate and tail-clip tests, indicating the antinociceptive effects of these compounds. To the best of our knowledge, this is the first study of central nervous system activities of chemical compounds carrying thiadiazole and hydrazone moieties together on their structures.
通过 2-[(5-甲基-1,3,4-噻二唑-2-基)硫代)]乙酰肼与醛/酮反应,合成了带有腙分子的新型噻二唑衍生物。化合物的化学结构通过 1H-NMR、13C-NMR、MS-FAB 光谱数据和元素分析得以阐明。通过孔板试验、活动笼试验、尾悬挂试验和改良强迫游泳试验(MFST)考察了受试化合物对小鼠行为的影响。热板法和夹尾法评估了抗痛觉活性。实验结果表明,在孔板试验和活动笼试验中,受试化合物没有明显改变动物的探索行为或运动活动。给参考药物氟西汀(10 毫克/千克)和化合物 3a、3b、3c、3j、3k 和 3l 服用后,动物在悬尾试验和 MFST 试验中的不动时间明显缩短,这表明这些衍生物具有抗抑郁样作用。吗啡(10 毫克/千克)和化合物 3a、3b、3c、3d、3e、3j、3k 和 3l 增加了小鼠在热板试验和夹尾试验中的反应时间,表明这些化合物具有抗痛觉作用。据我们所知,这是首次对结构中同时含有噻二唑和腙的化合物的中枢神经系统活性进行研究。