Synthetic and Biological Studies on New Urea and Triazole Containing Cystobactamid Derivatives
作者:Therese Planke、Katarina Cirnski、Jennifer Herrmann、Rolf Müller、Andreas Kirschning
DOI:10.1002/chem.201904073
日期:2020.4
Cystobactamid 861-2 is the most active member of these antibiotics. Most amide bonds present in the cystobactamids link benzoic acids with anilines and it was found that some of these amide bonds undergo chemical and enzymatic hydrolysis, especially the one linking ring C with ring D. This work reports on the chemical synthesis and biological evaluation of thirteen new cystobactamids that still contain
Cystobactamids 属于基于芳烃的低聚酰胺类,可有效抑制细菌 IIa 型拓扑异构酶。Cystobactamid 861-2 是这些抗生素中最活跃的成员。大多数存在于cystobactamids 的酰胺键将苯甲酸与苯胺连接起来,并且发现其中一些酰胺键经历化学和酶水解,尤其是连接环C 和环D 的一个。这项工作报告了13 个的化学合成和生物学评价仍包含甲氧基天冬氨酸铰链的新型囊菌酰胺。然而,在后一种情况下,我们通过脲或三唑基团和修饰的环 A 交换了选定的酰胺键。虽然这些结构替代物可以提高水解稳定性,但囊菌酰胺 861-2 的高抗菌效力只能在特定情况下保留。