Parallel Synthesis of a Library of Symmetrically- and Dissymmetrically-disubstituted Imidazole-4,5-dicarboxamides Bearing Amino Acid Esters
作者:Rosanna Solinas、John DiCesare、Paul Baures
DOI:10.3390/molecules14010352
日期:——
The imidazole-4,5-dicarboxylic acid scaffold is readily derivatized with amino acid esters to afford symmetrically- and dissymmetrically-disubstituted imidazole-4,5-dicarboxamides with intramolecularly hydrogen bonded conformations that predispose the presentation of amino acid pharmacophores. In this work, a total of 45 imidazole-4,5-dicarboxamides bearing amino acid esters were prepared by parallel synthesis. The library members were purified by column chromatography on silica gel and the purified compounds characterized by LC-MS with LC detection at 214 nm. A selection of the final compounds was also analyzed by 1H-NMR spectroscopy. The analytically pure final products have been submitted to the Molecular Library Small Molecule Repository (MLSMR) for screening in the Molecular Library Screening Center Network (MLSCN) as part of the NIH Roadmap.
咪唑-4,5-二羧酸骨架可以通过氨基酸酯进行方便的衍生化,从而获得具有内分子氢键构象的对称和不对称二取代咪唑-4,5-二胺,这些构象有利于氨基酸药效团的呈现。在本研究中,通过平行合成制备了共计45种含氨基酸酯的咪唑-4,5-二胺。文库成员通过硅胶柱层析纯化,纯化后的化合物通过LC-MS进行表征,LC检测波长为214 nm。此外,部分最终化合物还通过1H-NMR光谱进行了分析。分析纯的最终产品已提交至分子库小分子库(MLSMR),用于作为NIH路线图的一部分,在分子库筛选中心网络(MLSCN)进行筛选。