Total Synthesis of Arylomycin
A<sub>2</sub>, a Signal Peptidase I (SPase I) Inhibitor
作者:Luc Neuville、Jieping Zhu、Jeremy Dufour
DOI:10.1055/s-2008-1078209
日期:——
A concise totalsynthesis of arylomycinA2 was accomplished featuring a key intramol. Suzuki-Miyaurareaction for the formation of the 14-membered meta,meta-cyclophane and direct coupling of a fully elaborated peptide side-chain with the macrocyclic core. [on SciFinder (R)]
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%。