8-dioxane-[(1,2-dicarba-closo-undecaborane)-3,3'-cobalt(-1)(1',2'-dicarba-closo-undecaborane)] 、
5'-O-(4-methoxytrityl)-3'-O-acetylthymidine 在
sodium hydride 作用下,
以
甲苯 为溶剂,
生成 5'-O-monomethoxytrityl-3'-O-acetyl-4-O-[bisethyleneoxy-8-[(1,2-dicarba-closo-undecaborane)-3,3'-cobalt(-1)(1',2'-dicarba-closo-undecaborane)]]thymidine 、 5'-O-monomethoxytrityl-3'-O-acetyl-3-N-[bisethyleneoxy-8-[(1,2-dicarba-closo-undecaborane)-3,3'-cobalt(-1)(1',2'-dicarba-closo-undecaborane)]]thymidine