1,3,5-Triazepan-2,6-diones as Structurally Diverse and Conformationally Constrained Dipeptide Mimetics: Identification of Malaria Liver Stage Inhibitors from a Small Pilot Library
作者:Gersande Lena、Eliette Lallemand、Anne Charlotte Gruner、Joel Boeglin、Solveig Roussel、Arnaud-Pierre Schaffner、André Aubry、Jean-François Franetich、Dominique Mazier、Irène Landau、Jean-Paul Briand、Claude Didierjean、Laurent Rénia、Gilles Guichard
DOI:10.1002/chem.200600560
日期:2006.11.15
the more planar 2,5-diketopiperazine (DKP). Molecular and structural diversity was increased further through post-cyclization appending operations at urea nitrogens. Preliminary biological screens of a small collection of 1,3,5-triazepane-2,6-diones revealed inhibitors of the underexplored malaria liver stage and suggest strong potential for this dipeptide-derived scaffold to interfere with and to modulate
据报道,将1,3,5-三氮杂环庚烷-2,6-二酮系统开发为一种新型的,构象受限的和易于获得的二肽模拟物。由多种简单的线性二肽前体仅需四个步骤即可完成稠密官能化的1,3,5-三氮杂环庚烷-2,6-二酮骨架的合成。为了扩展1,3,5-三氮杂环庚烷-2,6-二酮的实用价值,开发了适用于多平行形式文库生产的通用聚合物辅助溶液相合成方法。通过NMR光谱和X射线衍射详细研究了1,3,5-三氮杂环庚烷-2,6-二酮骨架的构象偏好。该环表现出特征性的折叠构象,该构象与包括更平坦的2,5-二酮哌嗪(DKP)的相关二肽衍生的支架相比较。通过在尿素氮上进行后环化附加操作,进一步提高了分子和结构的多样性。少量的1,3,5-triazepane-2,6-diones的初步生物学筛选揭示了疟疾肝阶段未充分开发的抑制剂,并表明这种二肽衍生的支架具有强大的潜力来干扰和调节生物学途径。