中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-氯-9-[2-脱氧-3,5-二-O-(4-甲基苯甲酰)-B-D-赤式-呋喃戊糖基]-9H-嘌呤 | 6-Chloro-9-(2-deoxy-3,5-di-O-p-toluoyl-β-D-erythro-pentofuranosyl)purine | 91713-46-1 | C26H23ClN4O5 | 506.945 |
The title bis(purin-6-yl)acetylene and -diacetylene nucleoside derivatives were prepared as covalent base-pair analogues starting from acyl-protected 6-ethynylpurine and 6-iodopurine nucleosides by the Sonogashira cross-coupling or oxidative alkyne-dimerization reactions followed by deprotection. The key starting acyl-protected 6-ethynylpurine nucleosides were prepared by a sequence of cross-coupling reactions of protected 6-halopurine nucleosides with (trimethylsilyl)acetylene followed by a modified desilylation with TBAF in presence of acetic acid. Surprisingly, the acyl-protected nucleosides exhibited significant cytostatic activity higher than the fully deprotected title compounds.