One-pot synthesis, biological evaluation, and docking study of new chromeno-annulated thiopyrano[2,3-c]pyrazoles
作者:Bhagyashri D. Parmar、Tushar R. Sutariya、Gaurangkumar C. Brahmbhatt、Narsidas J. Parmar、Rajni Kant、Vivek K. Gupta、Prashant R. Murumkar、Mayank Kumar Sharma、Mange Ram Yadav
DOI:10.1007/s11030-016-9665-z
日期:2016.8
AbstractA one-pot synthesis of new chromeno-annulated thiopyrano[2,3-c]pyrazoles has been achieved through a domino-Knoevenagel–hetero-Diels–Alder reaction after combining various pyrazol-5-thiones with O-alkenyloxy/alkynyloxy-salicylaldehydes/naphthaldehydes in a Brønsted acidic ionic liquid, [Hmim]HSO\(_4}\), methylimidazolium hydrogen sulphate, under microwave irradiation. The method is simple
抽象的在将各种吡唑-5-硫酮与O-烯氧基/炔氧基-水杨醛结合后,通过多米诺-Knoevenagel-杂-Diels-Alder反应,可以实现一锅合成新的苯并季铵盐化的吡喃并[2,3- c ]吡唑在微波辐射下,在布朗斯台德酸性离子液体[Hmim] HSO \(_ 4} \),甲基咪唑鎓硫酸氢中的对硝基苯甲醛。该方法很简单,在许多情况下,分离出的产物不需要进一步纯化。中心吡喃硫吡喃基顺式融合已通过2D NMR NOESY和单晶X射线分析证实,表明内含E-Syn过渡态将是反应中最有利的途径。发现该新系列的许多杂环对六种细菌菌株和两种真菌菌株具有活性。此外,所有化合物均具有良好的抗氧化活性,其铁还原抗氧化能力值为\(>} 100 \,\ hbox mmol} / 100 \ hbox g} \)。假设基于物质预测结果的活性谱的预测,该化合物具有降压活性潜力,那么所有新结构都将停靠在血管紧张