期刊
CHEMICAL SCIENCE
卷 4, 期 8, 页码 3036-3045出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sc51023a
关键词
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资金
- EPSRC
- University of Southampton
- A*STAR
- FCT (Fundacao para a Ciencia e a Tecnologia) [SFRH/BD/87520/2012]
- FCT [SFRH/BPD/27082/2006]
- QREN-FEDER, through the Operational Program Competitiveness Factors - COMPETE
- National Funds through the FCT [PTDC/QUI-QUI/101022/2008]
- EPSRC [EP/G002576/1, EP/J009687/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J009687/1, EP/G002576/1] Funding Source: researchfish
- Fundação para a Ciência e a Tecnologia [PTDC/QUI-QUI/101022/2008, SFRH/BD/87520/2012] Funding Source: FCT
The transport of anions across biological membranes by small molecules is a growing research field due to the potential therapeutic benefits of these compounds. However, little is known about the exact mechanism by which these drug-like molecules work and which molecular features make a good transporter. An extended series of 1-hexyl-3-phenylthioureas were synthesized, fully characterized (NMR, mass spectrometry, IR and single crystal diffraction) and their anion binding and anion transport properties were assessed using H-1 NMR titration techniques and a variety of vesicle-based experiments. Quantitative structure-activity relationship (QSAR) analysis revealed that the anion binding abilities of the mono-thioureas are dominated by the (hydrogen bond) acidity of the thiourea NH function. Furthermore, mathematical models show that the experimental transmembrane anion transport ability is mainly dependent on the lipophilicity of the transporter (partitioning into the membrane), but smaller contributions of molecular size (diffusion) and hydrogen bond acidity (anion binding) were also present. Finally, we provide the first step towards predictable anion transport by employing the QSAR equations to estimate the transmembrane transport ability of four new compounds.
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