7-(2-deoxy-β-D-erythro-pentofuranosyl)-N4-[(dimethylamino)ethylidene]-5-(prop-1-ynyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine 在
吡啶 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
生成 7-(2-deoxy-5-O-(4,4'-dimethoxytriphenylmethyl)-β-D-erythro-pentofuranosyl)-N
4-[(dimethylamino)ethylidene]-5-(prop-1-ynyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine 3'-[(2-cyanoethyl)-N,N-diisopropylphosphoramidite]