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

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• 作者：Jolanta Dyniewicz ; Piotr F. J. Lipiński ; Piotr Kosson ; Anna Leśniak ; Marta Bochyńska-Czyż ; Adriana Muchowska ; Dirk Tourwé ; Steven Ballet ; Aleksandra Misicka ; Andrzej W. Lipkowski
• 刊名：ACS Medicinal Chemistry Letters
• 出版年：2017
• 出版时间：January 12, 2017
• 年：2017
• 卷：8
• 期：1
• 页码：73-77
• 全文大小：332K
• ISSN：1948-5875

文摘

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 (ICub>50ub>= 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.