Synthesis and biological evaluation of several 3-(coumarin-4-yl)tetrahydroisoxazole and 3-(coumarin-4-yl)dihydropyrazole derivatives
作者:Anne A. Emmanuel-Giota、Konstantina C. Fylaktakidou、Konstantinos E. Litinas、Demetrios N. Nicolaides、Dimitra J. Hadjipavlou-Litina
DOI:10.1002/jhet.5570380329
日期:2001.5
A series of novel 3-(coumarin-4-yl)tetrahydroisoxazoles 5a,b, 7, 9 and 3-(coumarin-4-yl)dihydropyra-zoles 13a-d, 14,15a,b were synthesized from coumarin-4-carboxaldehyde 1 via the intermediate N-methyl nitrone 3 and N-phenyl or N-methyl hydrazones 11a,b. These coumarin derivatives were isolated, characterized and evaluated in vitro for their ability to inhibit trypsin, β-glucuronidase, soybean lipoxygenase
一系列新颖(香豆素-4-基)3- tetrahydroisoxazoles 5a,5b中,7,9和3-(香豆素-4-基)dihydropyra-zoles 13A-d,14,15a,B是从香豆素-4-合成通过中间体N-甲基硝酮3和N-苯基或N-甲基11a,b分解成甲醛1 。对这些香豆素衍生物进行了分离,表征和体外评估,以抑制胰蛋白酶,β-葡萄糖醛酸苷酶,大豆脂氧合酶以及与稳定的自由基1,1-二苯基-2-吡啶并肼基相互作用的能力。这些化合物已在体内进行了测试在大鼠角叉菜胶爪水肿试验中用作抗炎药。化合物15a似乎是要被修饰以改善脂氧合酶抑制作用的先导分子。根据结构特征讨论了结果。