4-amino-6-[7-(benzyloxy)-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl]-7-hydroxythieno[3,2-b]pyridin-5(4H)-one 以
N,N-二甲基乙酰胺 、
环己酮 为溶剂,
以73%的产率得到6-[7-(benzyloxy)-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl]-4-(cyclohexylideneamino)-7-hydroxythieno[3,2-b]pyridin-5(4H)-one