制备了5-(5-甲酰基噻吩基),5-(4-甲酰基苯基)和5-(2-氟-5-甲酰基苯基)胞嘧啶2'-脱氧核糖核苷单(dC R MP)和三磷酸(dC R TP)通过将5碘胞嘧啶核苷酸与相应的甲酰基芳基硼酸的Suzuki-Miyaura水溶液交叉偶联。的直流- [R TP小号分别为DNA聚合酶优良底物,并通过引物延伸或PCR被并入DNA中。研究并优化了dC R MP s型模型的赖氨酸或含赖氨酸的三肽的还原胺化作用。在磷酸盐水溶液(pH 6.7)中,三肽III的还原胺化反应的收率 高达25%。含醛的DNA与含赖氨酸的三肽的生物缀合是通过在水性磷酸盐缓冲液中还原胺化实现的,收率高达90%。
制备了5-(5-甲酰基噻吩基),5-(4-甲酰基苯基)和5-(2-氟-5-甲酰基苯基)胞嘧啶2'-脱氧核糖核苷单(dC R MP)和三磷酸(dC R TP)通过将5碘胞嘧啶核苷酸与相应的甲酰基芳基硼酸的Suzuki-Miyaura水溶液交叉偶联。的直流- [R TP小号分别为DNA聚合酶优良底物,并通过引物延伸或PCR被并入DNA中。研究并优化了dC R MP s型模型的赖氨酸或含赖氨酸的三肽的还原胺化作用。在磷酸盐水溶液(pH 6.7)中,三肽III的还原胺化反应的收率 高达25%。含醛的DNA与含赖氨酸的三肽的生物缀合是通过在水性磷酸盐缓冲液中还原胺化实现的,收率高达90%。
Reactive aldehyde‐modified DNA was prepared in two steps by Suzuki cross‐coupling of halogenated nucleoside triphosphates (dNTPs) with 4‐formylthiophene‐2‐boronic acid and subsequent polymerase incorporation of the modified nucleotides into DNA (see scheme; PEX=primer extension, PCR=polymerase chain reaction). Formation of hydrazones with arylhydrazines under aqueous conditions was used for DNA staining