1-(2-deoxy-β-D-erythro-pentofuranosyl)-3-(hex-1-ynyl)-1,5-dihydro-6-[(2-methylpropanoyl)amino]-4H-pyrazolo[3,4-d]pyrimidin-4-one 在
吡啶 、
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 1.53h,
生成 1-[2-deoxy-5-O-(4,4'-dimethoxytrityl)-β-D-erythro-pentofuranosyl]-3-(hex-1-ynyl)-1,5-dihydro-6-[(2-methylpropanoyl)amino]-4H-pyrazolo[3,4-d]pyrimidin-4-one 3'-(2-cyanoethyl diisopropylphosphoramidite)