1-(3-bromo-2-chloropyridin-2-yl)hydrazine 、 tert-butyl (E)-(2-((1-(dimethylamino)ethylidene)amino)-2-oxoethyl)(methyl)carbamate 在
溶剂黄146 作用下,
以
1,4-二氧六环 为溶剂,
以7 g的产率得到tert-butyl ((1-(3-bromo-2-chloropyridin-4-yl)-3-methyl-1H-1,2,4-triazol-5-yl)methyl)(methyl)carbamate