A series of 3-thiolated β-lactams were synthesized by [2+2] ketene–imine cycloaddition reaction from S-substituted mercaptoacetic acids and Schiff bases. Then, some of the 3-methylthio β-lactams were converted to 3-(methylsulfinyl) β-lactams and 3-(methylsulfonyl) β-lactams using m-CPBA under different reaction conditions. All the compounds were characterized by spectral data and elemental analyses
通过[2 + 2]
乙烯酮-
亚胺环加成反应,由S-取代的
巯基乙酸和席夫碱合成了一系列3-
硫醇化的β-内酰胺。然后,某些3-甲
硫β内酰胺转化成3-(甲基亚磺酰基),使用β内酰胺和3-(甲磺酰基)β内酰胺米-CPBA不同的反应条件下。所有化合物均通过光谱数据和元素分析进行了表征,并评估了它们对包括
金黄色葡萄球菌(耐
甲氧西林的菌株)在内的致病菌株的体外抗菌和抗真菌活性。初步筛选结果表明,其中一些化合物具有中等至非常好的抗菌和抗真菌活性。