Synthesis and hybridization affinity of oligodeoxyribonucleotides incorporating 4-N-(N-arylcarbamoyl)deoxycytidine derivatives
作者:Kenichi Miyata、Ryuji Tamamushi、Akihiro Ohkubo、Haruhiko Taguchi、Kohji Seio、Mitsuo Sekine
DOI:10.1016/j.tetlet.2004.10.116
日期:2004.12
Modified oligodeoxynucleotides incorporating 4-N-(N-arylcarbamoyl)-dC derivatives 1a–c were synthesized. The 1H NMR spectra of 1a–c suggest that the carbamoyl group forms an intramolecular hydrogen bond with the cytosine ring nitrogen atom so that formation of a Watson–Crick base pair with the complementary guanine base is inhibited. The hybridization properties of oligodeoxynucleotides containing
合成了含有4- N-(N-芳基氨基甲酰基)-dC衍生物1a – c的修饰寡聚脱氧核苷酸。1a – c的1 H NMR光谱表明,氨基甲酰基与胞嘧啶环氮原子形成分子内氢键,从而抑制了与互补鸟嘌呤碱基形成的Watson-Crick碱基对。通过T m分析研究了含有1a – c的寡聚脱氧核苷酸的杂交特性。4- N-(N-苯基氨基甲酰基)-dC(1a)类似于先前报道的4- N-(N-烷基氨基甲酰基)-dC衍生物。与1a形成鲜明对比的是,结果表明4- N-(N-萘-1-基)和(N-喹啉-5-基)-dC(1b,c)具有作为通用碱基的独特性质。