作者:Christian Wojczewski、Joachim W. Engels
DOI:10.1055/s-2000-6224
日期:——
3′-S-(2-N-(t-Butyloxycarbonyl)aminoethylthio)-3′-deoxy-5′-O-(4,4′-dimethoxytrityl)thymidine (3) was synthesized by treating 5′-O-(4,4′-dimethoxytrityl)-2,3′-anhydrothymidine (2) with t-butyl N-(2-mercaptoethyl)carbamate (1) and DBU. Compound 3 was further converted to 3′-S-(2-N-(t-butyloxycarbonyl)aminoethylthio)-3′-deoxythymidine-5′-triphosphate (5) and 3′-S-(2-aminoethylthio)-3′-deoxythymidine-5′-triphosphate (9). The latter compound was labeled with a near-IR fluorescent dye.
通过处理 5'-O-( 4,4'-二甲氧基三苯甲基)-2,3'-脱水胸苷 (2) 与 N-(2-巯基乙基)氨基甲酸叔丁酯 (1) 和 DBU。化合物3进一步转化为3'-S-(2-N-(叔丁氧基羰基)氨基乙硫基)-3'-脱氧胸苷-5'-三磷酸(5)和3'-S-(2-氨基乙硫基)-3' -脱氧胸苷-5'-三磷酸 (9)。后一种化合物用近红外荧光染料标记。