Urotensin II<sup>(4–11)</sup> Azasulfuryl Peptides: Synthesis and Biological Activity
作者:Francesco Merlino、Ali M. Yousif、Étienne Billard、Julien Dufour-Gallant、Stéphane Turcotte、Paolo Grieco、David Chatenet、William D. Lubell
DOI:10.1021/acs.jmedchem.6b00108
日期:2016.5.26
Cyclic azasulfuryl (As) peptide analogs of the urotensin II (UII, 1, H-Glu-Thr-Pro-Asp-c[Cys-Phe-Trp-Lys-Tyr-Cys]-Val-OH) fragment 4–11 were synthesized to explore the influences of backbone structure on biological activity. N-Aminosulfamides were inserted as surrogates of the Trp7 and Lys8 residues in the biologically relevant Trp-Lys-Tyr triad. A combination of solution- and solid-phase methods were
urotensin II(UII,1,H-Glu-Thr-Pro-Asp- c [Cys-Phe-Trp-Lys-Tyr-Cys] -Val-OH)片段的环状氮杂硫磺酰(As)肽类似物为4-11。合成以探索骨架结构对生物活性的影响。将N-氨基磺酰胺作为Trp 7和Lys 8残基的替代物插入生物学相关的Trp-Lys-Tyr三联体中。的溶液-和固相方法的组合来制备新颖的UII (4-11)类似物6 - 11由路线设有azasulfuryl甘氨酸三肽前体的烷基化,以安装各种侧链。衍生物的药理概况6 -使用竞争性结合测定在体外测试11种,并且使用大鼠主动脉环生物测定离体测试11种。虽然类似物表现出了尾加压素II受体(UT),而不激动活性弱亲和力,azasulfuryl-UII (4-11)的衍生物7 - 9减小到的UII的影响50%和尾加压素II相关肽(URP),而不影响他们的效能。