Preparation of Pyrene-Modified Purine and Pyrimidine Nucleosides via Suzuki-Miyaura Cross-Couplings and Characterization of their Fluorescent Properties
作者:Hans-Achim Wagenknecht、Elke Mayer、Linda Valis、Robert Huber、Nicole Amann
DOI:10.1055/s-2003-41069
日期:——
A set of pyrene-modified pyrimidine and purine nucleosides, consisting of 5-(1-pyrenyl)-2'-deoxyuridine (1), 5-(1-pyrenyl)-2'-deoxycytidine (2), 8-(1-pyrenyl)-2'-deoxyguanosine (3), and 8-(1-pyrenyl)-2'-deoxyadenosine (4), was prepared via palladium-catalyzed Suzuki-Miyaura-type cross-coupling reactions. The syntheses started from 1-pyrenylboronic acid (5) and the corresponding halogenated nucleoside
一组芘修饰的嘧啶和嘌呤核苷,由 5-(1-芘基)-2'-脱氧尿苷 (1)、5-(1-芘基)-2'-脱氧胞苷 (2)、8-(1- pyrenyl)-2'-deoxyguanosine (3) 和 8-(1-pyrenyl)-2'-deoxyadenosine (4) 是通过钯催化的 Suzuki-Miyaura 型交叉偶联反应制备的。合成从 1-芘基硼酸 (5) 和相应的卤代核苷前体开始。它们在没有保护 2'-脱氧核糖部分的羟基功能和核苷碱基的环外氨基功能的情况下进行。制备 1 和 3 可以获得良好的收率,但在 2 和 4 的情况下则不然。显然,后一种化合物需要保护基策略。