Synthesis and antibacterial studies of teixobactin analogues with non-isostere substitution of enduracididine
作者:Kang Jin、Kathy Hiu Laam Po、Wang Yeuk Kong、Chung Hei Lo、Chun Wah Lo、Ho Yin Lam、Amaya Sirinimal、Jonathan Avraham Reuven、Sheng Chen、Xuechen Li
DOI:10.1016/j.bmc.2018.01.016
日期:2018.3
l-allo-enduracididine (End) residue which is not readily accessible. In this report, we have used convergent Ser Ligation as the key step to prepare a series of teixobactin analogues with End being substituted with its non-isostere moieties. Among these analogues, compounds T16, T27 and T29 exhibited the best antimicrobial activities against different Gram-positive bacteria with MICs ranging from 0.25
Teixobactin是一种结构和机制新颖的抗菌肽,对革兰氏阳性病原体具有有效的活性。它包含升-同种异体-enduracididine(完)残基,其是不容易接近。在本报告中,我们已使用收敛性Ser连接作为制备一系列teixobactin类似物的关键步骤,其中End被其非等排部分取代。在这些类似物中,化合物T16,T27和T29对MIC范围为0.25至1.0 µM的不同革兰氏阳性细菌表现出最佳的抗菌活性。还建立了结构-活性关系,以进一步开发更有希望的teixobactin类似物。