tert-butyl 5-amino-3,3-dimethylpiperidine-1-carboxylate 、 6-chloro-3-(2-methoxy-4-(trifluoromethyl)phenyl)-4-methyl-1,2,4-triazin-5(4H)-one 在
caesium carbonate 、 (rac)-BINAP Pd G
3 作用下,
以
1,4-二氧六环 为溶剂,
以39 %的产率得到tert-butyl 5-((3-(2-methoxy-4-(trifluoromethyl)phenyl)-4-methyl-5-oxo-4,5-dihydro-1,2,4-triazin-6-yl)amino)-3.3-dimethylpiperidine-1-carboxylate