Synthesis and antibacterial activities of enamine derivatives of dehydroacetic acid
作者:Alex G. Baldwin、Jonathan Bevan、David Brough、Ruth Ledder、Sally Freeman
DOI:10.1007/s00044-017-2110-8
日期:2018.3
Dehydroacetic acid is a common pyrone derivative used commercially as an antibacterial and antifungal agent. Based on the synthesis of dehydroacetic acid (1) from N-hydroxysuccinimdyl acetoacetate, a novel series of enamine-based derivatives were synthesised in order to improve the antibacterial activity of dehydroacetic acid. The antibacterial activities of the synthesised analogues were evaluated
脱氢乙酸是商业上用作抗菌和抗真菌剂的普通吡喃酮衍生物。在由N-羟基琥珀酰亚胺基乙酰乙酸酯合成脱氢乙酸(1)的基础上,合成了一系列新的基于烯胺的衍生物,以提高脱氢乙酸的抗菌活性。评价了合成的类似物对大肠杆菌和金黄色葡萄球菌的抗菌活性。衍生品4d(N-Ph)被确定为金黄色葡萄球菌生长的最有效抑制剂。总体而言,导数4b(N-Me)表现出最佳的广谱活性,与去氢乙酸相比,对大肠杆菌的最小抑菌浓度高五倍,最小杀生物浓度高11倍,此外还提高了对金黄色葡萄球菌的抗菌活性。