A method of preparing Compound (1) or a pharmaceutically acceptable salt thereof:
comprises: (a) reacting Compound (X):
or a pharmaceutically acceptable salt thereof with Compound (Y):
in the presence of a palladium catalyst and a carbonate or phosphate base to form compound (Z):
or a pharmaceutically acceptable salt thereof; and (b) deprotecting the Ts group of Compound (Z) to form Compound (1) or a pharmaceutically acceptable salt thereof.
制备化合物(1)或其药学上可接受的盐的方法:包括:(a)在
钯催化剂和
碳酸盐或
磷酸盐碱存在下,将化合物(X)或其药学上可接受的盐与化合物(Y)反应,形成化合物(Z)或其药学上可接受的盐;(b)去保护化合物(Z)的Ts基团,形成化合物(1)或其药学上可接受的盐。