1-{(4-fluoro-benzyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)acetyl]amino}pyrrolidine-2-carboxylic acid methyl ester 、
sodium ethanolate 在
盐酸 、
乙酸乙酯 、 Brine 、
Sodium sulfate-III 、 crude product 、 silica gel 、
甲醇 、
二氯甲烷 、
N-{3-[1-(4-fluorobenzyl)-4-hydroxy-2-oxo-1,2,4a,5,6,7-hexahydro-pyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide 作用下,
以
乙醇 为溶剂,
反应 4.0h,
以to afford the desired product, N-{3-[1-(4-fluoro-benzyl)-4-hydroxy-2-oxo-1,2,4a,5,6,7-hexahydro-pyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide (0.013 g, 0.024 mmol, 11.3% over 2 steps) as a light yellow solid的产率得到N-{3-[1-(4-fluorobenzyl)-4-hydroxy-2-oxo-1,2,4a,5,6,7-hexahydro-pyrrolo[1,2-b]pyridazin-3-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide