3-methyl-5-(6-methyl-pyridin-2-yl)-thiophene-2-boronic acid 、 7-(1-ethyl-propyl)-3-iodo-2,5-dimethyl-pyrazolo[1,5-a]pyrimidine 在
二(三叔丁基膦)钯 sodium carbonate 作用下,
以
乙醇 、
甲苯 为溶剂,
以73%的产率得到7-(1-ethyl-propyl)-2,5-dimethyl-3-[3-methyl-5-(6-methyl-pyridin-2-yl)thiophen-2-yl]-pyrazolo[1,5-a]pyrimidine