申请人:Pei Dehua
公开号:US20070259812A1
公开(公告)日:2007-11-08
A macrocyclic peptide deformylase (PDF) inhibitor comprising a peptide or peptide mimetic having three residues, P1′, P2′, and P3′, wherein P2′ connects P1′ and P3′, wherein P1′ and P3′ each have a side chain, and wherein the side chains on P1′ and P3′ are crosslinked to form the macrocyclic PDF inhibitor. The side chains of P1′ and P3′ interact with the PDF active site, and preferably, P2′ has a side chain that interacts with a solvent. Also provided are methods of inhibiting the growth of a bacterium, the methods comprising contacting the bacterium with an anti-bacterial effective amount of the inventive macrocyclic PDF inhibitor. Additionally, a method of treating a bacterial infection in a subject comprising administering an effective amount of a macrocyclic PDF inhibitor to a subject in need of treatment. Additionally, methods of preparing macrocyclic PDF inhibitors comprising a) choosing an acyclic base molecule, having at least some PDF inhibitory activity, the acyclic base molecule having a first residue having a first side chain that interacts with the PDF active site and a second residue having a second that interacts with the PDF active site; and b) crosslinking the first side chain and the second side chain to form a macrocyclic PDF inhibitor.
一种环状肽变形酶(PDF)抑制剂,包括一个具有三个残基P1'、P2'和P3'的肽或肽类似物,其中P2'连接P1'和P3',P1'和P3'各具有一个侧链,P1'和P3'的侧链交叉连接形成环状PDF抑制剂。P1'和P3'的侧链与PDF活性位点相互作用,优选地,P2'具有与溶剂相互作用的侧链。还提供了抑制细菌生长的方法,该方法包括使用本发明的环状PDF抑制剂与细菌接触以达到抗菌的有效量。此外,还提供了一种治疗受感染者细菌感染的方法,包括向需要治疗的受感染者施用有效量的环状PDF抑制剂。此外,还提供了制备环状PDF抑制剂的方法,包括:a)选择具有至少一定程度PDF抑制活性的非环状基分子,其中该非环状基分子具有第一个残基,该第一个残基具有与PDF活性位点相互作用的第一个侧链,以及第二个残基,该第二个残基具有与PDF活性位点相互作用的第二个侧链;和b)交叉连接第一个侧链和第二个侧链以形成环状PDF抑制剂。