Tandem free-radical addition/substitution chemistry and its application to the preparation of novel AT<sub>1</sub>receptor antagonists
作者:Maree K. Staples、Rebecca L. Grange、James A. Angus、James Ziogas、Nichole P. H. Tan、Michelle K. Taylor、Carl H. Schiesser
DOI:10.1039/c0ob00573h
日期:——
tested for AT1 receptor antagonist properties. While the sulfur-containing systems were prepared following existing methodology, the selenium-containing analogues required the development of novel, tandem free-radical chemistry involving addition of aryl radicals to alkynes, followed by intramolecular homolytic substitution at the higher heteroatom. All four compounds prepared proved to be excellent
苯并噻吩 和 苯并硒烯 含噻吩类降压药的类似物 米伐沙坦 和 依普罗沙坦制备并测试AT 1受体拮抗剂的性质。尽管按照现有方法制备了含硫体系,但含硒类似物需要开发新颖的串联自由基化学方法,该方法涉及向炔烃中添加芳基,然后在高级杂原子上进行分子内均质取代。所制备的所有四种化合物均被证明是出色的AT 1受体拮抗剂,p K B估计为7.2–9.5。