作者:Hari Babu Mereyala、Sreeman Kumar Mamidyala
DOI:10.1081/ncn-120030722
日期:2004.12.31
The coupling reaction of acetoxymethoxy ribofuranoside 4 with nucleic acid bases 5a-f to synthesize novel (ribofuranosyloxy)methyl uracil, thymine, cytosine, adenine, guanine derivatives 6a-g respectively in preference to the expected formation of natural nucleosides 2',3',5'-tri-O-benzoyl uridine, methyluridine, cytidine, adenosine and guanosine 7a-g is described. Detailed study of these reactions
乙酰氧基甲氧基核呋喃糖核苷4与核酸碱基5a-f的偶联反应分别优先于预期形成的天然核苷2',3',分别合成新颖的(核呋喃糖基氧基)甲基尿嘧啶,胸腺嘧啶,胞嘧啶,腺嘌呤,鸟嘌呤衍生物6a-g,描述了5'-三-O-苯甲酰尿苷,甲基尿苷,胞苷,腺苷和鸟苷7a-g。描述了由路易斯酸TMSOTf和SnCl4催化的这些反应的详细研究。TMSOTf显示出形成呋喃核糖基氧基甲基衍生物6a-g而不是7a-g的选择性。HSAB原理解释了形成6a-g的原因。