6-bromo-N-(3-hydoxybenzyl)pyrazine-2,3-diamine 在
1,1'-bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane complex 、 sodium carbonate 作用下,
以
1,4-二氧六环 为溶剂,
反应 1.33h,
生成
1-(3-hydroxybenzyl)-6-(4-hydroxyphenyl)-1H-imidazo[4,5-b]pyrazin-2(3H)-one