New cyclic peptides via ring-closing metathesis reactions and their anti-bacterial activities
作者:Timothy P. Boyle、John B. Bremner、Jonathan Coates、John Deadman、Paul A. Keller、Stephen G. Pyne、David I. Rhodes
DOI:10.1016/j.tet.2008.09.031
日期:2008.12
As part of a program investigating cyclic peptides with an internal aromatic hydrophobic scaffold as potential novel anti-bacterial agents, we explored the synthesis of simple tyrosine-based systems. These were prepared via key intermediates containing internal allylglycine and allyltyrosine residues for subsequent ring-closing metathesis reactions. Although the resulting anti-bacterial activity against
作为研究带有内部芳香族疏水支架作为潜在新型抗菌剂的环肽的计划的一部分,我们探索了基于酪氨酸的简单系统的合成。这些是通过含有内部烯丙基甘氨酸和烯丙基酪氨酸残基的关键中间体制备的,用于随后的闭环易位反应。尽管所产生的针对金黄色葡萄球菌的抗菌活性适中,但这代表了这类化合物的新颖而简单的途径。一种中间体无环二肽前体显示出对金黄色葡萄球菌的良好活性,MIC为7.8μg/ mL。