soluble tag-assisted liquid-phase peptide synthesis, the selective recovery of desired peptides and Ph3PO was achieved. Given that methods to reduce Ph3PO to Ph3P have been reported, Ph3PO could be a recyclable byproduct unlike byproducts from typical coupling reagents. Moreover, a commercial peptide active pharmaceutical ingredient (API), leuprorelin, was successfully synthesized without the use of traditional
从绿色化学的角度来看,偶联试剂产生的大量废物是肽合成的一个严重缺陷。为了克服这个问题,我们报告了一种双相系统中的电化学肽合成。三苯基膦 (Ph 3 P) 的阳极氧化生成膦自由基阳离子,作为偶联剂来活化羧酸,并产生作为化学计量副产物的三苯基氧化膦 (Ph 3 P O)。结合可溶性标签辅助液相肽合成,实现了所需肽和 Ph 3 P O的选择性回收。由于降低pH值法3 P O操作博士3已报道P,博士3P O的程序可能不像从典型的偶联剂副产品可回收副产品。此外,在不使用传统偶联剂的情况下成功合成了商业肽活性药物成分 (API) 亮丙瑞林。
β-Strand mimics based on tetrahydropyridazinedione (tpd) peptide stitching
作者:Chang Won Kang、Matthew P. Sarnowski、Sujeewa Ranatunga、Lukasz Wojtas、Rainer S. Metcalf、Wayne C. Guida、Juan R. Del Valle
DOI:10.1039/c5cc07189e
日期:——
Covalent peptide stitching using tetrahydropyridazinedione subunits leads to novel constrained β-strand mimics.
Hydrophobic tag-assisted liquid-phase peptide synthesis technique and disulfide bond formation have been well-combined, leading to the efficient and practical preparation of a growth hormone-inhibiting peptide somatostatin. Intramolecular disulfide bond formation has successfully been carried out even under relatively high concentrations, enabling the effective peptide modifications in preparative scale. (C) 2011 Elsevier Ltd. All rights reserved.