Synthesis, antimicrobial, and antiviral activities of some new 5-sulphonamido-8-hydroxyquinoline derivatives
作者:Emad M. Kassem、Eslam R. El-Sawy、Howaida I. Abd-Alla、Adel H. Mandour、Dina Abdel-Mogeed、Mounir M. El-Safty
DOI:10.1007/s12272-012-0602-0
日期:2012.6
A series of fused pyranopyrazole and pyranoimidazole, namely 5-(3,6-diamino-4-aryl-5-carbonitrile-pyrano(2,3-c)pyrazol-2-yl)sulphonyl-8-hydroxyquinolines (5a–e), 5-(6-amino-4-aryl-5-carbonitrile-pyrano(2,3-c)pyrazol-3-yl)sulphonamido-8-hydroxyquinolines (6a-e), 5-(2-thioxo-4-aryl-5-carbonitrile-6-amino-pyrano(2,3-d)imidazol-2-yl)sulphonyl-8-hydroxyquinolines (10a-e), and 5-(2-oxo-4-aryl-5-carbonitrile-6-amino-pyrano(2,3-d)imidazol-2-yl) sulphonyl-8-hydroxyquinolines (11a-e), have been prepared via condensation of some arylidine malononitriles with 5-sulphonamido-8-hydroxyquinoline derivatives 3, 4, 8 and 9. All the synthesized compounds were screened for their antimicrobial activities, and most of the tested compounds showed potent inhibition growth activity towards Escherichia coli, Pseudomonas aeruginosa (Gramnegative bacteria). Furthermore, six selected compounds were tested for their antiviral activity against avian paramyxovirus type1 (APMV-1) and laryngotracheitis virus (LTV), and the results showed that a concentration range of 3-4 μg per mL of compounds 2, 3, and 4 showed marked viral inhibitory activity for APMV-1 of 5000 tissue culture infected dose fifty (TCID50) and LTV of 500 TCID50 in Vero cell cultures based on their cytopathic effect. Chicken embryo experiments show that compounds 2, 3, and 4 possess high antiviral activity in vitro with an inhibitory concentration fifty (IC50) range of 3–4 μg per egg against avian APMV-1 and LTV and their toxic concentration fifty (CC50) of 200–300 μg per egg.
一系列融合的吡嗪并吡喃类化合物,即5-(3,6-二氨基-4-芳基-5-氰基-吡喃(2,3-c)吡嗪-2-基)磺酰基-8-羟基喹啉(5a-e)、5-(6-氨基-4-芳基-5-氰基-吡喃(2,3-c)吡嗪-3-基)磺酰胺-8-羟基喹啉(6a-e)、5-(2-硫酮-4-芳基-5-氰基-6-氨基-吡喃(2,3-d)咪唑-2-基)磺酰基-8-羟基喹啉(10a-e),以及5-(2-氧代-4-芳基-5-氰基-6-氨基-吡喃(2,3-d)咪唑-2-基)磺酰基-8-羟基喹啉(11a-e),通过将一些芳基二苯乙亚胺与5-磺酰胺-8-羟基喹啉衍生物3、4、8和9进行缩合反应制备而成。所有合成的化合物均进行了抗微生物活性筛选,大多数测试化合物对大肠杆菌和铜绿假单胞菌(阴性菌)表现出强效的抑菌活性。此外,六种选择的化合物还被测试其对禽类副黏病毒1型(APMV-1)和喉气管炎病毒(LTV)的抗病毒活性,结果显示,2、3和4号化合物在浓度范围为每毫升3-4 μg时,对APMV-1(5000组织培养感染剂量五十TCID50)和LTV(500 TCID50)具有显著的病毒抑制活性,基于其细胞病变效应。鸡胚实验表明,2、3和4号化合物在体外对禽类APMV-1和LTV具有高抗病毒活性,抑制浓度五十(IC50)范围为每个鸡蛋3–4 μg,毒性浓度五十(CC50)范围为每个鸡蛋200–300 μg。