2-ethoxymethyleneamino-5-ethylthio-1-(2-deoxy-3,5-di-O-p-toluoyl-β-D-erythro-pentofuranosyl)-pyrrole-3,4-dicarbonitrile 在
氨 作用下,
以
甲醇 为溶剂,
反应 48.0h,
以91%的产率得到4-amino-6-ethylthio-7-(2-deoxy-β-D-erythro-pentofuranosyl)pyrrolo<2,3-d>pyrimidine-5-carbonitrile