(1S,2R,3S,4R)-3-[[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)acetyl]-(3-methylbutyl)amino]bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester 、
sodium ethanolate 、
盐酸 在
乙酸乙酯 、
Sodium sulfate-III 、 crude product 、
(1R,2S,7R,8S)-N-{3-[6-hydroxy-3-(3-methylbutyl)-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-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, (1R,2S,7R,8S)-N-{3-[6-hydroxy-3-(3-methyl-butyl)-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide (0.19 g, 0.364 mmol, 56.1% over two steps)的产率得到(1R,2S,7R,8S)-N-{3-[6-hydroxy-3-(3-methylbutyl)-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}methanesulfonamide