against Gram-positive and Gram-negative bacteria. In particular, Trp, Tyr, and Phe-containing peptides showed greater antimicrobial potency than the reference standards. Alkyl chain length variations in heterocyclic moiety indicated that hybrids with propyl group were more active than butyl derivatives. Improved results were observed for debenzylated versions of the conjugates compared to their benzylated
设计了相对低电荷和大量疏
水性
氨基酸的肽。设计肽的
氨基酸序列为 GXGVP,其中 X 等于 W、Y、F、D 和 T,具有疏
水、带电和极性单元的组合。这些肽与
喹唑啉酮连接,以获得具有协同特性的一类新化合物。这些杂种对革兰氏阳性菌和革兰氏阴性菌显示出抗菌活性。特别是,含有 Trp、Tyr 和 Phe 的肽显示出比参考标准更高的抗菌效力。杂环部分中烷基链长的变化表明具有丙基的杂化物比丁基衍
生物更具活性。与它们的苄基化对应物相比,观察到脱苄基形式的缀合物的改进结果。