Convenient and Efficient Syntheses of<i>N</i><sup>6</sup>- and<i>N</i><sup>4</sup>- Substituted Adenines and Cytosines and their 2′-Deoxyribosides
作者:Ewelina Adamska、Jan Barciszewski、Wojciech T. Markiewicz
DOI:10.1080/15257770.2012.742198
日期:2012.12
Convenient and efficient methods of the synthesis of N6- and N4-substituted derivatives of adenine and cytosine and their 2′-deoxyribosides were developed. The reactions of either unprotected nucleobases (adenine, cytosine) or unprotected 2′-deoxyribosides with aryl or alkyl aldehydes give corresponding Schiff bases that can be reduced to the target title compounds with high overall yields. In the
开发了一种便捷高效的合成腺嘌呤和胞嘧啶的N 6-和N 4-取代衍生物及其2'-脱氧核糖苷的方法。未保护的核碱基(腺嘌呤,胞嘧啶)或未保护的2'-脱氧核糖苷与芳基或烷基醛的反应可生成相应的席夫碱,这些席夫碱可被还原为目标标题化合物,且总收率高。在芳基醛的情况下,亚胺衍生物在甲醇中的甲醇盐存在下获得,并用硼氢化钠还原。与烷基醛的相应反应需要使用乙酸和硼烷二甲基硫醚络合物。