2'-(tert-butyl)-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-7'(6'H)-one 、
2-(4-methylpiperazine-1-yl)quinoline-4-carboxylic acid 在
三乙胺 、 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-二甲基甲酰胺 为溶剂,
反应 12.5h,
以65%的产率得到2'-(tert-butyl)-1-(2-(4-methylpiperazin-1-yl)quinoline-4-carbonyl)-2'H-spiro[piperidine-4,5'-pyrano[3,2-c]pyrazole]-7'(6'H)-one