Versatile synthesis of 6-substituted 8-deazapteridine-2,4-diamines. Formal total synthesis of 8,10-dideazaminopterin
作者:Reinhard Troschütz、Alexander Karger
DOI:10.1002/jhet.5570330643
日期:1996.11
A new synthesis of 4-amino-4-deoxy-8,10-dideazapteroic acid (11d) and 6-substituted and 5,6-anellated 8-deazapteridine-2,4-diamines, 10a, 10d, 25, is described. Starting from keteneaminals 1 or 12 and enaminones 4 or β-aminoketone 17 the title compounds can be prepared via functional group transformation of 2-amino-3-nitropyridines 5 or nicotinate 13a yielding 3-amino-α-picolinonitriles 9 which are
描述了4-氨基-4-脱氧-8,10-二氮杂氮杂壬酸(11d)和6-取代的和5,6-带烯丙基的8-脱氮杂啶-2,4-二胺10a,10d,25的新合成。从烯酮缩醛1或12和烯胺酮4或β-氨基酮17开始,可以通过2-氨基-3-硝基吡啶5或烟酸酯13a的官能团转化制备标题化合物,得到3-氨基-α-吡啶啉9,其与胍环缩合。 。