Syntheses of 1,5-Benzothiazepines: Part 48: Single Pot Syntheses and Antimicrobial Studies of 8-Substituted 4-(2,4/2,5-disubstituted aryl)-2,3-dihydro-1,5-benzothiazepine-2-carboxylic Acids
作者:Seema Pant、Meenakshi Yadav
DOI:10.14233/ajchem.2017.20700
日期:——
Two substituted acrylic acids, b-(2,4-dimethylbenzoyl) acrylic acid and b-(2,5-diisopropylbenzoyl) acrylic acid were reacted with six 5-substituted 2-aminobenzenethiols, in dry ethanol containing trifluroacetic acid to obtain ten new compounds, 8-substituted 4-(2,4-dimethylphenyl/2,5-diisopropylphenyl)-2,3-dihydro-1,5-benzothiazepine-2-carboxylic acids in 53-63 % yields. The products were characterized on the basis of micro analytical data and spectral analysis comprising IR, 1H NMR and mass studies. All the synthesized compounds have been screened for their antimicrobial activity against the Gram-positive bacteria, Staphylococcus aureus and Gram-negative bacteria, Enterobacter cloacae, Klebsiella aerogenes and fungus, Candida albicans with respective reference compounds.
在含有三氟乙酸的干燥乙醇中,b-(2,4-二甲基苯甲酰基)丙烯酸和 ;在含有三氟乙酸的干燥乙醇中,b-(2,5-二异丙基苯甲酰基)丙烯酸与六种 5-取代的 2-氨基苯硫酚反应,得到十种新化合物,即 8-取代的 4-(2,4-二甲基苯基/2,5-二异丙基苯基)-2,3-二氢-1,5-苯并硫氮杂卓-2-羧酸,收率为 53-63%。根据微量分析数据和光谱分析(包括红外光谱、1H NMR 和质量研究)对这些产品进行了表征。对所有合成化合物进行了筛选,以确定其对革兰氏阳性菌金黄色葡萄球菌、革兰氏阴性菌肠杆菌、产气克雷伯氏菌和真菌白色念珠菌的抗菌活性。