Chemoselective synthesis of 5-amino-7-bromoquinolin-8-yl sulfonate derivatives and their antimicrobial evaluation
作者:Palaa Krishna
DOI:10.1080/10426507.2018.1488714
日期:2018.10.3
5-amino-7-bromoquinolin-8-ol sulfonate derivatives 5(a–j) were synthesized from 8-hydroxyquinoline through multi-step process with high yields using mild, efficient and conventional methods. Chemoselectivity was observed during the transformation of 5-amino-7-bromoquinolin-8-ol to 5-amino-7-bromoquinolin-8-ol sulfonate with various sulfonylchlorides exclusively to afford sulfonate derivatives. Also, the products
摘要 以8-羟基喹啉为原料,采用温和、高效、常规的方法,通过多步高产率合成了一系列新型5-氨基-7-溴喹啉-8-醇磺酸盐衍生物5(a-j)。在 5-amino-7-bromoquinolin-8-ol 向 5-amino-7-bromoquinolin-8-ol 磺酸盐与各种磺酰氯的转化过程中观察到化学选择性,专门提供磺酸盐衍生物。此外,还研究了产品的体外抗菌活性,并与标准药物进行了比较。在所有合成的化合物中,5-氨基-7-溴喹啉-8-基联苯-4-磺酸盐 (5b) 和 5-氨基-7-溴喹啉-8-基 2-羟基-5-硝基苯磺酸盐 (5g) 均显示出有效的抗菌作用活动,而 5-amino-7-bromoquinolin-8-yl biphenyl-4-sulfonate (5b) 和 5-amino-7-bromoquinolin-8-yl 2-hydroxy-5-nitrobenzosulfonate