报道了含有苯并呋喃、苯并噻吩、吲哚和苯并三唑核碱基的非天然核苷酸之间形成的自对的 DNA 的稳定性和复制。这些核碱基类似物基于类似的支架,但具有不同的氢键供体/受体基团,这些基团预计定向在双链小沟中。非自然碱基对似乎不会引起主要的结构扭曲,并且在 B 型双链体的限制范围内。这些非天然碱基对之间的差异仅体现在聚合酶介导的延伸步骤中,而不体现在碱基对稳定性或合成中。苯并三唑自身对的扩展效率仅比正确的天然碱基对低 200 倍。
报道了含有苯并呋喃、苯并噻吩、吲哚和苯并三唑核碱基的非天然核苷酸之间形成的自对的 DNA 的稳定性和复制。这些核碱基类似物基于类似的支架,但具有不同的氢键供体/受体基团,这些基团预计定向在双链小沟中。非自然碱基对似乎不会引起主要的结构扭曲,并且在 B 型双链体的限制范围内。这些非天然碱基对之间的差异仅体现在聚合酶介导的延伸步骤中,而不体现在碱基对稳定性或合成中。苯并三唑自身对的扩展效率仅比正确的天然碱基对低 200 倍。
Synthesis of C-Deoxyribonucleosides Bearing Typical Aromatic Heterocycles as Base Moiety
作者:Masataka Yokoyama、Takahiro Akiba、Hideo Togo
DOI:10.1055/s-1995-3969
日期:1995.6
Seven C-2-deoxy-D- ribonucleosides bearing typical aromatic heterocycles as base moiety are synthesized in good yields by the stereoselective addition of lithium salts of aromatic heterocycles to the silyl-protected 2-deoxy-D-ribose followed by cyclization and deprotection.
Efficient Synthesis of α- and β-2′-Deoxy-heteroaryl-<i>C</i>-nucleosides
作者:Alain Burger、Rachid Benhida、Marie Spadafora
DOI:10.1055/s-2008-1072589
日期:2008.5
A short and efficient method for the synthesis of a series of 2′-deoxy-heteroaryl- C-nucleosides has been developed by the application of aryl-aldol condensation followed by P-toluenesulfonic acid (PTSA)-mediated isopropylidene cleavage and subsequent cycloetherification.
The Effect of Minor-Groove Hydrogen-Bond Acceptors and Donors on the Stability and Replication of Four Unnatural Base Pairs
作者:Shigeo Matsuda、Allison A. Henry、Peter G. Schultz、Floyd E. Romesberg
DOI:10.1021/ja034099w
日期:2003.5.1
these unnaturalbasepairs are manifest only in the polymerase-mediated extension step, not in base-pair stability or synthesis. The benzotriazole self-pair is extended with an efficiency that is only 200-fold less than a correct natural basepair. The data are discussed in terms of available polymerase crystal structures and imply that further modifications may result in unnaturalbasepairs that can
报道了含有苯并呋喃、苯并噻吩、吲哚和苯并三唑核碱基的非天然核苷酸之间形成的自对的 DNA 的稳定性和复制。这些核碱基类似物基于类似的支架,但具有不同的氢键供体/受体基团,这些基团预计定向在双链小沟中。非自然碱基对似乎不会引起主要的结构扭曲,并且在 B 型双链体的限制范围内。这些非天然碱基对之间的差异仅体现在聚合酶介导的延伸步骤中,而不体现在碱基对稳定性或合成中。苯并三唑自身对的扩展效率仅比正确的天然碱基对低 200 倍。