Microwave-assisted synthesis of novel 4H-chromene derivatives bearing 2-aryloxyquinoline and their antimicrobial activity assessment
作者:Chetan B. Sangani、Nimesh M. Shah、Manish P. Patel、Ranjan G. Patel
DOI:10.1007/s00044-012-0381-7
日期:2013.8
A new series of 4H-chromene derivatives 6a–x bearing 2-aryloxyquinoline nucleus have been synthesized under microwave irradiation by reaction of 2-aryloxyquinoline-3-carbaldehyde 3a–l, malononitrile 4, and compounds (Cyclohexanedione, Dimidone) 5a–b in the presence of NaOH as the basic catalyst. All the compounds were screened against three Gram-positive bacteria (Streptococcus pneumoniae, Clostridium
通过2-芳氧基喹啉-3-甲醛3a - 1,丙二腈4和化合物(环己二酮,二mid酮)5a - b的反应,在微波辐射下合成了一系列带有2-芳氧基喹啉核的4 H-色烯衍生物6a - x系列。在NaOH作为碱性催化剂存在下。所有化合物均针对三种革兰氏阳性菌(肺炎链球菌,破伤风梭菌,枯草芽孢杆菌),三种革兰氏阴性菌(鼠伤寒沙门氏菌,霍乱弧菌,大肠杆菌和两种真菌(烟曲霉,白色念珠菌)采用肉汤微量稀释MIC(最小抑制浓度)方法。通过对抗菌药物筛选的研究,发现与标准药物相比,大多数化合物对破伤风梭菌和枯草芽孢杆菌以及白色念珠菌具有活性。