Synthesis, Anticonvulsant, and Anti-inflammatory Activities of Some New Benzofuran-Based Heterocycles
作者:Kamal M. Dawood、Hassan Abdel-Gawad、Mohey Ellithey、Hanan A. Mohamed、Bahira Hegazi
DOI:10.1002/ardp.200500176
日期:2006.3
Treatment of 2‐bromoacetylbenzofuran (2) with pyridine afforded its corresponding pyridinium bromide 3. The latter salt reacted with some activated alkenes and acetylenes to give the corresponding indolizine derivatives. Treatment of the salt 3 with benzylidenemalononitriles 9 afforded polysubstituted aniline derivatives, however with arylidenecyanothioacetamides 15 it gave the corresponding 4,5‐dihydrothiophenes
用吡啶处理 2-溴乙酰苯并呋喃 (2) 得到相应的溴化吡啶鎓 3。后一种盐与一些活化的烯烃和乙炔反应得到相应的吲哚嗪衍生物。用亚苄基丙二腈 9 处理盐 3 得到多取代的苯胺衍生物,但是用亚芳基氰基硫代乙酰胺 15 得到相应的 4,5-二氢噻吩。溴化物 3 还与对氯苯重氮盐和乙酸铵偶联,得到相应的 1,2,4,5-四嗪衍生物。检查了新合成化合物的生物活性,发现其中一些具有抗惊厥和抗炎活性。