N-[(3R,4S)-4-ethoxypyrrolidin-3-yl]-3,6-diethyl-5-(6-methoxy-2-methylpyridin-3-yl)pyrazin-2-amine 、
2-溴嘧啶 在
tris-(dibenzylideneacetone)dipalladium(0) 、 2,5-bis-(2,6-di-iso-propylphenyl)imidazolium chloride
potassium tert-butylate 作用下,
以
1,4-二氧六环 为溶剂,
反应 16.0h,
以52%的产率得到N-{[(3R,4S)-4-ethoxy-1-pyrimidin-2-yl]pyrrolidin-3-yl}-3,6-diethyl-5-(6-methoxy-2-methylpyridin-3-yl)pyrazin-2-amine