.. 29 1. MODIFICATIONS IN THE HETEROCYCLIC BASE ............................................................. 29 1. Thiobases Containing Nucleosides, Nwleotides ......................................................................... 29 2. Thiobases Containing Oligonucleotides, Photochemical Probes and Tools .................... .. .. ..... 3 1 3. Synthesis and Modi@&ns of Nucleosides and Oligonwleotkh
介绍 ....... 。………………………………………… …………………………………… …………………… …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… .. .. .. .. .. .. 29 1. 杂环基的修改 ..................................... ...................................... 29 1. 含有核苷、核苷酸的
硫代碱基 ..................... ………………………………………………………………………………………………………………………………………………………… ................. 29 2. 含寡核苷酸的
硫基碱基、光
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