Facile eco-friendly synthesis of novel chromeno[4,3-b]pyridine-2,5-diones and evaluation of their antimicrobial and antioxidant properties
作者:SATYANARAYANA REDDY JAGGAVARAPU、ANAND SOLOMON KAMALAKARAN、VENTKATA PRASAD JALLI、SRAVAN KUMAR GANGISETTY、MUNUSSWAMY RAMANUJAM GANESH、GOPIKRISHNA GADDAMANUGU
DOI:10.1007/s12039-013-0565-9
日期:2014.1
broad spectrum antibacterial properties against all the evaluated bacteria, compound 5g exhibited good antioxidant properties. Tricyclic chromeno[4,3-b]pyridine-2,5-diones are precipitated as pure products from the reaction of 4-chloro-3-formyl-coumarin and acetoacetamides in PEG-300 as recyclable solvent and evaluated for their antimicrobial and antioxidant properties.
通过4-氯-3-甲酰基香豆素和乙酰乙酰胺在可回收溶剂中的4-氯-3-甲酰基香豆素和乙酰乙酰胺的温和碱催化反应,可以快速,轻松地获得新的铬[4,3-b]吡啶-2,5-二酮衍生物。在控制头孢噻肟的情况下,评估了这些化合物对3种革兰氏阳性和3种革兰氏阴性细菌(表皮葡萄球菌,副溶血弧菌,枯草芽孢杆菌,大肠杆菌,金黄色葡萄球菌和肺炎克雷伯菌)的抗菌活性。他们使用抗坏血酸对照的DPPH测试对他们进行了抗氧化剂研究。而化合物5d和5k对所有评估细菌显示出广阔的抗菌前景,化合物5g表现出良好的抗氧化特性。 从4-氯-3-甲酰基香豆素和乙酰乙酰胺在PEG-300中作为可循环溶剂的反应,以纯产物形式沉淀出三环chromeno [4,3-b]吡啶-2,5-二酮,并对其抗菌性和抗氧化剂进行了评估属性。