N4-(2-amino-4-methylphenyl)-N2-(2-methoxy-5-methylpyridin-4-yl)-5-(trifluoromethyl)pyrimidine-2,4-diamine 、
(4R)-2,2-二甲基-1,3-二氧戊环-4-羧酸 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基乙酰胺 为溶剂,
以25%的产率得到(R)-2,3-dihydroxy-N-(2-((2-((2-methoxy-5-methylpyridin-4-yl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)amino)-5-methylphenyl)propanamide