7-(piperidin-4-ylamino)-1-methyl-3-ortho-tolyl-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one 、
2-溴乙醇 、
三乙胺 在
silica gel 、 Methanol isopropylamine ethyl acetate 作用下,
以
甲苯 、
N,N-二甲基丙烯基脲 为溶剂,
反应 17.0h,
以to give 70 mg (52%) of 7-[1-(2-hydroxyethyl)piperidin-4-ylamino]-1-methyl-3-ortho-tolyl-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one的产率得到7-[1-(2-hydroxyethyl)piperidin-4-ylamino]-1-methyl-3-ortho-tolyl-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one