抗生素实际上总是作为相关化合物的家族被分离出来,但观察到的多样性背后的进化力量通常知之甚少,甚至不清楚它们是否都具有生物活性。芳霉素类抗生素由三个相关家族组成,它们通过保守核心支架的硝化、糖基化和羟基化来区分。以前,我们报道了 A 系列成员 arylomycin A 2以及 A 系列衍生物 arylomycin C 16的全合成,并表明两者都对比以前认识的更广谱的细菌具有活性。我们现在报告 B 系列类似物 arylomycin BC 16的全合成,及其芳香胺衍生物。虽然芳香胺对所有测试的细菌都失去活性,但 B 系列化合物显示出与 A 系列化合物相似的活性,不同之处在于它还获得了对重要病原体无乳链球菌的活性。
抗生素实际上总是作为相关化合物的家族被分离出来,但观察到的多样性背后的进化力量通常知之甚少,甚至不清楚它们是否都具有生物活性。芳霉素类抗生素由三个相关家族组成,它们通过保守核心支架的硝化、糖基化和羟基化来区分。以前,我们报道了 A 系列成员 arylomycin A 2以及 A 系列衍生物 arylomycin C 16的全合成,并表明两者都对比以前认识的更广谱的细菌具有活性。我们现在报告 B 系列类似物 arylomycin BC 16的全合成,及其芳香胺衍生物。虽然芳香胺对所有测试的细菌都失去活性,但 B 系列化合物显示出与 A 系列化合物相似的活性,不同之处在于它还获得了对重要病原体无乳链球菌的活性。
[EN] BROAD SPECTRUM ANTIBIOTIC ARYLOMYCIN ANALOGS<br/>[FR] ANALOGUES DE L'ARYLOMYCINE À SPECTRE ANTIBIOTIQUE LARGE
申请人:SCRIPPS RESEARCH INST
公开号:WO2013138187A1
公开(公告)日:2013-09-19
Arylomycin analogs are provided, wherein the analogs can have broad spectrum bioactivity. Resistance to the antibiotic bioactivity of natural product arylomycin in a range of pathogenic bacterial species has been found to depend upon single amino acid mutations at defined positions of bacterial Signal Peptidases (SPases), wherein the presence of a proline residue confers arylomycin resistance. Arylomycin analogs are provided herein that can overcome that resistance and provide for a broader spectrum of antibiotic bioactivity than can natural product arylomycins such as arylomycin A2. Methods for determining if a bacterial strain is susceptible to narrow spectrum arylomycin antibiotics, or if a broad spectum analog is required for treatment, is provided. Pharmaceutical compositions and methods of treatment of bacterial infections, and methods of synthesis of arylomycin analogs, are provided.
Arylomycin analogs are provided, wherein the analogs can have broad spectrum bioactivity. Resistance to the antibiotic bioactivity of natural product arylomycin in a range of pathogenic bacterial species has been found to depend upon single amino acid mutations at defined positions of bacterial Signal Peptidases (SPases), wherein the presence of a proline residue confers arylomycin resistance. Arylomycin analogs are provided herein that can overcome that resistance and provide for a broader spectrum of antibiotic bioactivity than can natural product arylomycins such as arylomycin A2. Methods for determining if a bacterial strain is susceptible to narrow spectrum arylomycin antibiotics, or if a broad spectrum analog is required for treatment, is provided. Pharmaceutical compositions and methods of treatment of bacterial infections, and methods of synthesis of arylomycin analogs, are provided.
Intramolecular Suzuki-Miyaura Reaction for the Total Synthesis of Signal Peptidase Inhibitors, Arylomycins A2 and B2
作者:Jeremy Dufour、Luc Neuville、Jieping Zhu
DOI:10.1002/chem.201000924
日期:2010.9.10
Development of the total syntheses of arylomycins A1 and B2 is detailed. Key features of our approach include 1) formation of 14‐membered meta,meta‐cyclophane by an intramolecularSuzuki–Miyaurareaction; 2) incorporation of N‐Me‐4‐hydroxyphenylglycine into the cyclization precursor, which avoids the late‐stage low‐yielding N‐methylation step; 3) segment coupling of a fully elaborated peptide side
详细介绍了arylomycins A 1和B 2的总合成过程。我们方法的主要特征包括:1)通过分子内Suzuki-Miyaura反应形成14元间位,间环烷;2)将N -Me-4-羟基苯甘氨酸掺入环化前体中,避免了后期的低产N-甲基化步骤;3)将完整加工的肽侧链与大环段偶联,从而使合成高度收敛。总体而言,芳基霉素A 2以最长的线性序列从L- Tyr以13个步骤获得,总产率为13%。阿霉素B 2从L -3-硝基Tyr分十步合成,总收率为10%。
BROAD SPECTRUM ANTIBIOTIC ARYLOMYCIN ANALOGS
申请人:Romesberg Floyd E.
公开号:US20130281360A1
公开(公告)日:2013-10-24
Arylomycin analogs are provided, wherein the analogs can have broad spectrum bioactivity. Resistance to the antibiotic bioactivity of natural product arylomycin in a range of pathogenic bacterial species has been found to depend upon single amino acid mutations at defined positions of bacterial Signal Peptidases (SPases), wherein the presence of a proline residue confers arylomycin resistance. Arylomycin analogs are provided herein that can overcome that resistance and provide for a broader spectrum of antibiotic bioactivity than can natural product arylomycins such as arylomycin A2. Methods for determining if a bacterial strain is susceptible to narrow spectrum arylomycin antibiotics, or if a broad spectrum analog is required for treatment, is provided. Pharmaceutical compositions and methods of treatment of bacterial infections, and methods of synthesis of arylomycin analogs, are provided.