Synthesis of pyrazolo[3,4-b]pyridines under microwave irradiation in multi-component reactions and their antitumor and antimicrobial activities – Part 1
作者:M.A. El-borai、H.F. Rizk、M.F. Abd-Aal、I.Y. El-Deeb
DOI:10.1016/j.ejmech.2011.11.038
日期:2012.2
An efficient one-pot synthesis in multi-component system (MRCs) for the preparation of pyrazolo[3,4-b]pyridine derivatives from the reaction of 5-amino-1-phenyl-3-(pyridin-3-yl)-1H-pyrazole with 4-anisaldehyde and p-substituted β-ketonitriles or with pyruvic acid and some aromatic aldehydes in acetic acid medium. The reactions were carried out by two different techniques, conventional heating and microwave
一种高效的一锅多组分系统合成反应,通过5-氨基-1-苯基-3-(吡啶-3-基)-的反应制备吡唑并[3,4- b ]吡啶衍生物1 H-吡唑与4-茴香醛和对位取代的β-乙腈或在丙酮介质中与丙酮酸和一些芳族醛一起存在。反应通过两种不同的技术进行,常规加热和微波辐射。筛选了这些化合物对革兰氏阳性菌(芽孢杆菌),革兰氏阴性菌(大肠埃希氏菌,泄殖腔肠杆菌和沙雷氏菌)的抗菌活性以及对镰孢镰刀菌(Fusarium Oxysporum)和扩展青霉。同样,在合成的化合物4a – f中测试了对肝细胞系的抗肿瘤活性。化合物6-(4-氟苯基)-4-(4-甲氧基苯基)-1-苯基-3-(吡啶-3-基)-1H-吡唑并[3,4- b ]吡啶-5-甲腈(4e)和4-(4-甲氧基苯基)-1-苯基-3,6-二(吡啶-3-基)-1H-吡唑并[3,4- b ]吡啶-5-甲腈(4a)显示出最高的活性。