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Hydrazone Linker as a Useful Tool for Preparing ChimericPeptide/Nonpeptide Bifunctional Compounds

机译:Hydrazone接头是制备嵌合体的有用工具肽/非肽双功能化合物

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摘要

The area of multitarget compounds, joining two pharmacophores within one molecule, is a vivid field of research in medicinal chemistry. Not only pharmacophoric elements are essential for the design and activity of such compounds, but the type and length of linkers used to connect them are also crucial. In the present contribution, we describe compound >1 in which a typical opioid peptide sequence is combined with a fragment characteristic for neurokinin-1 receptor (NK1R) antagonists through a hydrazone bridge. The compound has a high affinity for μ- and δ-opioid receptors (IC50= 12.7 and 74.0 nM, respectively) and a weak affinity for the NK1R. Molecular modeling and structural considerations explain the observed activities. In in vivo test, intrathecal and intravenous administrations of >1 exhibited a strong analgesic effect, which indicates potential BBB penetration. This letter brings an exemplary application of the hydrazone linker for fast, facile, and successful preparation of chimeric compounds.
机译:在分子内连接两个药效基团的多靶标化合物领域是药物化学研究的一个生动领域。不仅药效基团对于这类化合物的设计和活性是必不可少的,而且用于连接它们的接头的类型和长度也至关重要。在目前的贡献中,我们描述了化合物> 1 ,其中典型的阿片样肽序列与kin激酶桥联的神经激肽-1受体(NK1R)拮抗剂的特征性片段结合在一起。该化合物对μ阿片受体和δ阿片受体具有高亲和力(分别为IC50 = 12.7和74.0 nM),而对NK1R则具有弱亲和力。分子建模和结构考虑因素解释了观察到的活性。在体内测试中,> 1 的鞘内和静脉内给药显示出强大的镇痛作用,这表明可能有BBB渗透。这封信给出了fast连接子在快速,简便和成功制备嵌合化合物中的示例性应用。

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