3-(3-chlorophenoxy)azetidine hydrochloride 、 4-(((1-(tert-butoxycarbonyl)piperidin-4-yl)methyl)amino)-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid 在
1-丙基磷酸酐 作用下,
以
四氢呋喃 为溶剂,
以76.7 %的产率得到tert-butyl 4-(((5-(3-(3-chlorophenoxy)azetidine-1-carbonyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)methyl)piperidine-1-carboxylate