Synthesis of a Benzophenone C-Nucleoside as Potential Triplet Energy and Charge Donor in Nucleic Acids
作者:Hans-Achim Wagenknecht、Michael Weinberger
DOI:10.1055/s-0031-1289672
日期:2012.2
A synthetic route to the C-nucleoside that bears benzophenone as a DNA base substitution directly at the anomeric center of the 2′-deoxyribofuranoside was worked out. Furthermore, the α-anomer of this artificial nucleoside was converted synthetically into the corresponding DNA building block and incorporated into two representative oligonucleotides by automated phosphoramidite chemistry. The chromophore-modified
拟定了一条合成路线,该路线直接在2'-脱氧核糖呋喃糖苷的异头中心带有二苯甲酮作为DNA碱基取代基。此外,该人工核苷的α-异头物通过自动亚磷酰胺化学合成地转化为相应的DNA结构单元,并掺入两个代表性的寡核苷酸中。发色团修饰的DNA通过光谱法表征。〜350 nm处的吸收带可用于在核酸吸收范围外选择性激发二苯甲酮生色团,这使二苯甲酮核苷潜在地可用于光化学和光生物学应用。 DNA-寡核苷酸-磷光-光催化-敏化剂