Synthesis of Some Novel 4-Imino-3,5,7-Trisubstituted Pyrido[2,3-<i>d</i>]Pyrimidine-2(1<i>H</i>)-Thiones and Their Nucleosides as Potential Therapeutic Agents
作者:Girwar Singh、Gajendra Singh、Ashok K. Yadav、A. K. Mishra
DOI:10.1080/10426500008076330
日期:2000.2
Abstract Some newer 4-imino-3,5,7-trisubstituted pyrido[2,3-d]pyrimidine-2(1H)-thiones were synthesized by the condensation of 2-amino-3-cyano-4,6-disubstituted pyridines with phenylisothiocyanate. The nucleosides viz., 4-imino-3,5,7-trisubstituted-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3,-d]pyrimidine-2(1H)-thiones were synthesized by the condensation of trimethylsilyl derivatives of pyrido[2
摘要 通过2-氨基-3-氰基-4,6-二取代吡啶的缩合反应合成了一些较新的4-亚氨基-3,5,7-三取代吡啶并[2,3-d]嘧啶-2(1H)-硫酮。与异硫氰酸苯酯。核苷即4-亚氨基-3,5,7-三取代-1-(2,3,5-tri-O-benzoyl-β-D-ribofuranosyl)pyrido[2,3,-d]pyrimidine-2 (1H)-硫酮是通过吡啶并[2,3-d]嘧啶的三甲基甲硅烷基衍生物与糖缩合合成的,即β-D-呋喃核糖1-acere-2,3,5-tribenzonte,而4-imino-3,5 ,7-三取代-1-(2,3,5-tri-O-benzoyl-α-D-ribofuranosyl)pyrido(2,3-d]pyrimidine-2(1H)-thiones 通过缩合吡啶的三甲基甲硅烷基衍生物制备[2,3-d]-嘧啶与糖在 SnCl4 存在下。