、
ethenesulfonic acid {3-[2-(3,3-dimethyl-butyl)-5-hydroxy-3-oxo-6-thiophen-2-yl-2,3-dihydro-pyridazin-4-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[e][1,2,4]thiadiazin-7-yl}amide 、
二乙胺 在
氮 、
2-diethylamino-ethanesulfonic acid (3-[2-(3,3-dimethyl-butyl)-5-hydroxy-3-oxo-6-thiophen-2-yl-2,3-dihydro-pyridazin-4-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[e][1,2,4]thiadiazin-7-yl)amide 作用下,
以
tetrahydrofuran methanol 为溶剂,
反应 2.0h,
以to afford the desired product, 2-diethylamino-ethanesulfonic acid {3-[2-(3,3-dimethyl-butyl)-5-hydroxy-3-oxo-6-thiophen-2-yl-2,3-dihydro-pyridazin-4-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-amide (5t) (40 mg, 57% yield for two steps) as a yellow solid的产率得到2-diethylamino-ethanesulfonic acid (3-[2-(3,3-dimethyl-butyl)-5-hydroxy-3-oxo-6-thiophen-2-yl-2,3-dihydro-pyridazin-4-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[e][1,2,4]thiadiazin-7-yl)amide