[(3aS,4S,6S,6aR)-6-[2-[tert-butyl(dimethyl)silyl]oxyethyl]-2,2-dimethyl-4,5,6,6a-tetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl] trifluoromethanesulfonate 、
6-(2-Methoxy-ethoxy)-9H-purine 、
lithium 生成 2-[(3aS,4R,6S,6aR)-4-[6-(2-methoxyethoxy)purin-9-yl]-2,2-dimethyl-4,5,6,6a-tetrahydro-3aH-cyclopenta[d][1,3]dioxol-6-yl]ethoxy-tert-butyl-dimethylsilane