Microwave assisted synthesis of novel 4h-chromene derivatives bearing phenoxypyrazole and their antimicrobial activity assess
作者:Chetan Sangani、Nimesh Shah、Manish Patel、Ranjan Patel
DOI:10.2298/jsc120102030s
日期:——
A new series of 4H-chromene derivatives 4(a-p) bearing 5-phenoxypyrazole nucleus has been synthesized under microwave irradiation by reaction of 5-phenoxypyrazole-4-carbaldehyde 1(a-h), malononitrile 2 and compounds (Cyclohexanedione, Dimedon) 3(a-b) in presence of NaOH as basic catalyst. All the compounds were screened against three Gram positive bacteria (Streptococcus pneumoniae, Clostridium tetani
通过5-苯氧基吡唑-4-甲醛1(ah),丙二腈2与化合物(环己二酮,Dimedon)3(ab)的反应,在微波辐射下合成了一系列带有5-苯氧基吡唑核的4H-色烯衍生物4(ap)。 )在氢氧化钠为碱性催化剂的情况下。使用肉汤微量稀释MIC(MIC)对所有化合物针对三种革兰氏阳性细菌(肺炎链球菌,破伤风梭菌,枯草芽孢杆菌),三种革兰氏阴性细菌(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)进行筛选。最小抑菌浓度)方法。通过对抗菌药物筛选的研究,我们发现,