Bioconjugate Chemistry 2007-01-01

5(6)-carboxyfluorescein revisited: new protecting group, separation of isomers, and their spectral properties on oligonucleotides.

Maksim V Kvach, Dmitry A Tsybulsky, Alexey V Ustinov, Irina A Stepanova, Stanislav L Bondarev, Sergey V Gontarev, Vladimir A Korshun, Vadim V Shmanai

文献索引：Bioconjug. Chem. 18(5) , 1691-6, (2007)

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摘要

Pentafluorophenyl esters of 5- and 6-carboxyfluorescein-3',6'-O-dipivalate can be easily separated in multigram quantities by column chromatography. The individual isomers were converted into stable phosphoramidites suitable for oligonucleotide synthesis. The use of the cyclohexylcarbonyl (Chc) protecting group instead of pivaloyl (Piv) facilitates the separation of isomers. The fluorescence spectra of 5- and 6-carboxyfluoresceins on oligonucleotides were compared.

相关化合物

  • 5-羧基荧光素
  • 三甲基乙酸

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