Novel Antagonists Acting at the P2Y<sub>1</sub> Purinergic Receptor: Synthesis and Conformational Analysis Using Potentiometric and Nuclear Magnetic Resonance Titration Techniques
作者:Pierre Raboisson、Anthony Baurand、Jean-Pierre Cazenave、Christian Gachet、Myriam Retat、Bernard Spiess、Jean-Jacques Bourguignon
DOI:10.1021/jm0104062
日期:2002.2.1
5'-bisphosphate (1a, pA(2) = 6.55 +/- 0.05), revealing the potency-enhancing effects of the 2-methyl group. The better activity of 1e as compared to 1a was analyzed using both potentiometric and nuclear magnetic resonance titration techniques, which highlighted specific conformational features of this compound. These results clearly indicate the preference for both compounds for an anti conformation at the
人P2Y(1)受体广泛分布在许多组织中,并具有G蛋白偶联受体的经典结构。该受体被5'-二磷酸腺苷(ADP)激活,对血小板聚集至关重要。在本文中,我们描述了新颖的P2Y(1)拮抗剂的合成,这些拮抗剂至少可以作为定义P2Y(1)受体的生理作用的工具,而最多只能作为新的抗血栓形成剂。因此,我们制备了2,N(6)-二甲基-2'-脱氧腺苷-3',5'-二磷酸酯衍生物1e。化合物1e抑制ADP诱导的血小板聚集,形状改变和细胞内钙升高的能力证明了其生物学活性。该化合物是P2Y(1)受体的完全拮抗剂,pA(2)值为7.11 +/- 0。11和发现是比参考N(6)-甲基-2'-脱氧腺苷-3',5'-双磷酸酯(1a,pA(2)= 6.55 +/- 0.05)强4倍,揭示了2-甲基的效力增强作用。使用电位滴定法和核磁共振滴定技术分析了1e与1a相比更好的活性,突出了该化合物的特定构象特征。这些结果清楚地表明对于