作者:George E. Greco、Zane A. Conrad、Alycia M. Johnston、Qingyao Li、Alan E. Tomkinson
DOI:10.1016/j.tetlet.2016.06.037
日期:2016.7
2 equiv of aromatic aldehydes produces a mixture of 6,7-diaryl-2-thioxopteridine-4-one and 6,7-diaryl-2-thioxo-7,8-dihydropteridine-4-one rather than a diimine. These compounds represent the correct structure for SCR7, a substance reported to be an inhibitor of nonhomologous end-joining, a DNA repair pathway. The dihydropteridine can be isolated as a minor product, and it can be oxidized to the pteridine
与已发表的报告相反,4,5-二氨基-6-羟基-2-巯基嘧啶与2当量的芳族醛的反应产生了6,7-二芳基-2-硫代蝶啶-4-一和6,7-二芳基-2-巯基-7,8-二氢蝶啶-4-一而不是二亚胺。这些化合物代表了SCR7的正确结构,SCR7是一种据报道是DNA修复途径的非同源末端连接抑制剂的物质。可以分离出二氢蝶啶为次要产物,并且可以将其氧化为蝶啶。