作者:Yasuhiro Kuroda、Kazuhiro Isarai、Shizuaki Murata
DOI:10.1515/hc-2012-0046
日期:2012.8.1
converted to 6-[1-(arylamino)ethyl]pteridine derivatives 8 and 7, respectively, in good to moderate yields by stepwise reactions with p-substituted anilines via imine intermediates using a Lewis acid catalyst followed by treatment with sodium tetrahydroborate. The one-step reductive amination of the starting acetylpteridine also proceeded in the presence of 2-picoline-borane complex in satisfactory yield
摘要 6-乙酰基-7-甲基蝶啶衍生物 2 和 3(lumazine 和蝶呤)分别转化为 6-[1-(芳氨基)乙基]蝶啶衍生物 8 和 7,通过与对位取代的逐步反应,产率良好至中等。使用路易斯酸催化剂通过亚胺中间体生成苯胺,然后用四氢硼酸钠处理。起始乙酰蝶啶的一步还原胺化也在 2-甲基吡啶-硼烷络合物的存在下以令人满意的产率进行。