(1S,2R,3S,4R)-3-{(2-cyclopropylethyl)-[2-(7-methanesulfonylamino-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-3-yl)acetyl]amino}bicyclo[2.2.1]heptane-2-carboxylic acid ethyl ester 、
sodium ethanolate 、
盐酸 在
乙酸乙酯 、
Sodium sulfate-III 、 crude mixture 、 ( 2 ) 、
N-{3-[(1R,2S,7R,8S)-3-(2-cyclopropylethyl)-6-hydroxy-4-oxo-3-azatricyclo[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 53.12h,
以to afford the desired product, N-{3-[(1R,2S,7R,8S)-3-(2-cyclopropyl-ethyl)-6-hydroxy-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 (160.7 mg, 0.309 mmol, 22.9% over two steps)的产率得到N-{3-[(1R,2S,7R,8S)-3-(2-cyclopropylethyl)-6-hydroxy-4-oxo-3-azatricyclo[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