tert-butyl 5-(4-(6-chloro-4-oxo-3,4-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)phenyl)-3,3-dimethylmorpholine-4-carboxylate 、
(4-chlorophenyl)(1-oxa-6-azaspiro[2.5]octan-6-yl)methanone 在
caesium carbonate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以52 %的产率得到tert-butyl 5-(4-(6-chloro-3-((1-(4-chlorobenzoyl)-4-hydroxypiperidin-4-yl)methyl)-4-oxo-3,4-dihydro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)phenyl)-3,3-dimethylmorpholine-4-carboxylate