N1-benzyl-2'-O-methyl guanosine

8-thio-2'-O-methylguanosine

三乙烯二胺

6-((tert-butyldiphenylsilyl)oxy)-9-((6aR,8R,9R,9aR)-2,2,4,4-tetraisopropyl-9-methoxytetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl)-9H-purin-2-amine

3’,5’-O-(1,1,3,3-四异丙基-1,3-二硅氧烷)鸟苷