Synthesis of pentanucleotide ApTpCpTpTp containing a 3′-terminal phosphomonoester group was accomplished with the help of the new phosphate-solid phase link 2-(4-carboxyphenyl-mercapto)ethanol; a similar molecule, 2-benzylsulfonylethanol, revealed interesting features as a temporary 3′-phosphate protecting group.
借助新型的
磷酸-固相键2-(4-羧基苯基-巯基)
乙醇完成了含有3'-末端
磷酸单酯基团的五核苷酸ApTpCpTpTp的合成。一个类似的分子
2-苄基磺酰基乙醇,作为一个临时的3'-
磷酸保护基显示出有趣的特征。