5-amino-7-(2-formylphenyl)-2-(2-furyl)[1,2,4]triazolo[1,5-c] pyrimidine 、
5-amino-7-(3-formylphenyl)-2-(2-furyl)[1,2,4]triazolo[1,5-c]pyrimidine 在
crude product 、
乙醇 作用下,
以to obtain Compound 19 (165 mg, 0.37 mmol) as white crystals in a yield of 45%的产率得到5-amino-2-(furan-2-yl)-7-{3-[2-(pyridin-2-yl)ethylaminomethyl]phenyl}[1,2,4]triazolo[1,5-c]pyrimidine