Synthesis of some new pyrido[2,3-d]pyrimidines and their ribofuranosides as possible antimicrobial agents
作者:Neeraj Kumar、Gajendra Singh、Ashok K. Yadav
DOI:10.1002/1098-1071(2001)12:1<52::aid-hc11>3.0.co;2-0
日期:——
5′-tri-O-benzoyl-α-d-ribofuranosyl]pyrido-[2,3-d] pyrimidine-2(1H)-thiones, have been synthesized by the condensation of trimethylsilyl derivatives of 5,7-disubstituted pyrido[2,3-d]pyrimidine-2(1H)-thiones with β-d-ribofuranose-1-acetate-2,3,5-tribenzoate in the presence of SnCl4. The heterocyclic bases, namely, 4-amino-5,7-disubstituted pyrido[2,3-d]pyrimidine-2(1H)-thiones, were synthesized by the treatment
呋喃核苷,即4-氨基-5,7-二取代-1-[2',3',5'-三-O-苯甲酰基-α-d-呋喃核糖基]吡啶并-[2,3-d]嘧啶- 2(1H)-硫酮,通过 5,7-二取代吡啶并[2,3-d]嘧啶-2(1H)-硫酮的三甲基甲硅烷基衍生物与 β-d-呋喃核糖-1-乙酸酯-2缩合合成,3,5-三苯甲酸酯在 SnCl4 存在下。4-氨基-5,7-二取代吡啶并[2,3-d]嘧啶-2(1H)-硫酮通过2-氨基-3-氰基-4,6-的处理合成了杂环碱基。双取代吡啶与硫脲。所有合成的呋喃核糖苷及其前体的结构均已通过元素分析、IR 和 1H NMR 光谱数据确定。还提供了呋喃核苷的 13C NMR 数据。所有合成的杂环碱基及其呋喃核糖苷均已筛选出抗菌和抗真菌活性。© 2001 John Wiley & Sons, Inc. 杂原子化学 12:52–56, 2001