Triplex stability of oligodeoxynucleotides containing substituted quinazoline-2,4-(1H,3H)-dione
作者:Justine Michel、Geneviève Gueguen、Joseph Vercauteren、Serge Moreau
DOI:10.1016/s0040-4020(97)00564-4
日期:1997.6
can be observed between double-stranded nucleic acids and a third strand through the formation of Hoogsteen hydrogen bond. We report here the use of quinazoline-2,4-dione derivatives as substitutes for thymine in TA∗T triplets. The synthesis and the characterization of monochloro derivatives of quinazoline-2,4-dione as well as 5-fluoro and 6-nitro substituted quinazoline rings are described. The ability
通过形成Hoogsteen氢键,可以在双链核酸和第三链之间观察到三重螺旋结构。我们在此报告了在TA ∗ T三联体中使用喹唑啉-2,4-二酮衍生物替代胸腺嘧啶。描述了喹唑啉-2,4-二酮,5-氟和6-硝基取代的喹唑啉环的一氯衍生物的合成和表征。通过热变性研究达到了各种修饰的碱基促进三链体形成的能力。