3-Formylchromones, Acylpyruvates, and Chalcone as Valuable Substrates for the Syntheses of Fused Pyridines
作者:Viktor Iaroshenko、Peter Langer、Vyacheslav Sosnovskikh、Satenik Mkrtchyan、Dmitriy Volochnyuk、Dmytro Ostrovskyi、Sergii Dudkin、Anton Kotljarov、Mariia Miliutina、Iryna Savych、Andrei Tolmachev
DOI:10.1055/s-0029-1218842
日期:2010.8
The reaction of electron-rich aminoheterocycles with 1,3-CCC-dielectrophiles, such as 3-formylchromones, acylpyruvates, and chalcone, provided diversely fused pyridines. Starting from 5-amino-1-(2,3-O-isopropylidene-β-d-ribofuranosyl)-1H-pyrazole, nucleosides containing a pyrazolo[3,4-b]pyridine fragment were obtained, which can be considered as adenosine deaminase (ADA) inhibitors.
富电子氨基异核环化合物与1,3-CCC-双电亲体(如3-甲酰基色烯、酰基丙酮酸和查尔酮)的反应生成了不同融合的吡啶。以5-氨基-1-(2,3-O-异丙烯基-β-D-核糖呋喃苷)-1H-吡唑为起始物,获得了含有吡唑[3,4-b]吡啶片段的核苷,这些核苷可以被视为腺苷脱氨酶(ADA)抑制剂。