Application of Suzuki-Miyaura and Buchwald<i>-</i>Hartwig Cross-coupling Reactions to the Preparation of Substituted 1,2,4-Benzotriazine 1-Oxides Related to the Antitumor Agent Tirapazamine
作者:Ujjal Sarkar、Roman Hillebrand、Kevin M. Johnson、Andrea H. Cummings、Ngoc Linh Phung、Anuruddha Rajapakse、Haiying Zhou、Jordan R. Willis、Charles L. Barnes、Kent S. Gates
DOI:10.1002/jhet.2559
日期:2017.1
there is a desire for synthetic routes that afford access to substituted 1,2,4-benzotriazine 1-oxides that can be used as direct precursors in the synthesis of 1,2,4-benzotriazine 1,4-dioxides. Here we describe the use of Suzuki-Miyaura and Buchwald-Hartwig cross-coupling reactions for the construction of various 1,2,4-benzotriazine 1-oxide analogs bearing substituents at the 3-, 6-, and 7-positions
许多1,2,4-苯并三嗪1,4-二氧化物具有选择性杀死实体瘤中缺氧细胞的能力。结果,期望提供能够获得取代的1,2,4-苯并三嗪1-氧化物的合成路线,所述取代的1,2,4-苯并三嗪1-氧化物可用作1,2,4-苯并三嗪1,4-二氧化物的直接前体。在这里,我们描述了使用Suzuki-Miyaura和Buchwald-Hartwig交叉偶联反应来构建各种在3、6和7位带有取代基的1,2,4-苯并三嗪1-氧化物类似物。