5-(3-chloro-4-fluoro-benzyl)-8-hydroxy-5-methyl-6-oxo-5,6-dihydro-indolizine-7-carboxylic acid methyl ester 、
(4-amino-3-sulfamoyl-phenyl)carbamic acid tert-butyl ester 、
三乙胺 、
盐酸 在
乙酸乙酯 、 Brine 、
magnesium sulfate 、 silica gel 、
甲醇 、
二氯甲烷 、
{3-[5-(3-chloro-4-fluoro-benzyl)-8-hydroxy-5-methyl-6-oxo-5,6-dihydro-indolizin-7-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-carbamic acid tert-butyl ester 作用下,
以
甲苯 为溶剂,
反应 68.0h,
以afforded the desired product, {3-[5-(3-chloro-4-fluoro-benzyl)-8-hydroxy-5-methyl-6-oxo-5,6-dihydro-indolizin-7-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-carbamic acid tert-butyl ester (0.324 g, 0.54 mmol, 65%) as a golden oil的产率得到{3-[5-(3-chloro-4-fluoro-benzyl)-8-hydroxy-5-methyl-6-oxo-5,6-dihydro-indolizin-7-yl]-1,1-dioxo-1,4-dihydro-1λ
6-benzo[1,2,4]thiadiazin-7-yl}-carbamic acid tert-butyl ester