双(三甲基硅烷基)氨基钾 、
5-[2-Ethoxy-5-(4-methylpiperazin-1-ylsulphonyl)pyridin-3-yl]-3-ethyl-2-[2-methoxyethyl]-2,6-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one 、
异丁醇 在
silica gel 作用下,
反应 24.0h,
以to afford the title compound, 88 mg的产率得到5-[2-Iso-butoxy-5-(4-methylpiperazin-1-ylsulphonyl)pyridin-3-yl]-3-ethyl-2-(2-methoxyethyl)-2,6-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one