Synthesis of 10-phenyl-[1,2,4]triazolo[1,5-b] [2,7]naphthyridin-5(3H)-one derivatives

被引:1
|
作者
Xu, Feng [1 ]
Yang, Zhen-Zhen [1 ]
Xi, Li-Min [1 ]
Jiang, Jun-Rong [1 ]
Ke, Zhong-Lu [1 ]
Wu, Han-Gui [1 ]
机构
[1] Taizhou Vocat & Tech Coll, Biopharmaceut Res & Dev Ctr, Taizhou 318000, Peoples R China
关键词
triazole; naphthyridinone; crystal structure; synthesis of 10-phenyl-[1,2,4] triazolo[1,5-b][2,7]naphthyridin-5(3H)-one derivatives; INDOLE ALKALOIDS; LOPHOCLADINES;
D O I
10.3184/174751914X13976543689677
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Several new 10-phenyl-[1,2,4] triazolo[1,5-b][2,7] naphthyridin-5(3H)-one derivatives were synthesised by condensation of 2,3-diamino-4-phenyl-2,7-naphthyridin-1(2H)-one with aldehydes and also with acid anhydrides. Their structures were confirmed by H-1 NMR, C-13 NMR, IR, mass spectra and elemental analysis. The key starting material 4-[a-cyano(phenyl) methyl] nicotinic acid was easily cyclised to give 3-amino-4-phenyl-1H-pyrano[3,4-c] pyridin-1-one under alkaline conditions, the structure of which was confirmed by X-ray crystallography following conversion to the corresponding N, N-dimethylformamidine derivative.
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页码:317 / 321
页数:5
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