5-[2-Ethoxy-5-(4-ethylpiperazin-1-ylsulphonyl)pyridin-3-yl]-3-ethyl-2-methyl-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 在
Copper(2+) sulfate heptahydrate 二氯甲烷 、 Brine 、
Sodium sulfate-III 、 crude product 、 silica gel 、 Ethyl acetate hexane methanol 作用下,
以
氨 为溶剂,
反应 4.0h,
以to afford the title compound (23 mg, 24%) as a white solid的产率得到3-Ethyl-5-[5-(4-ethylpiperazin-1-ylsulphonyl)-2-methoxypyridin-3-yl]-2-methyl-2,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one