2-chloro-N4-(2,2-dimethoxy-ethyl)-6-morpholin-4-yl-pyrimidine-4,5-diamine 、
sodium nitrite 在
5-chloro-3-(2,2-dimethoxy-ethyl)-7-morpholin-4-yl-3H-[1,2,3]triazolo[4,5-d]pyrimidine 作用下,
以to give the final product (450 mg, 61% yield)的产率得到5-chloro-3-(2,2-dimethoxy-ethyl)-7-morpholin-4-yl-3H-[1,2,3]triazolo[4,5-d]pyrimidine