di-tert-butyl [5-(5-chloro-2-{4-[(2,4-dimethoxybenzyl)(1,2,4-thiadiazol-5-yl)sulfamoyl]-2,5-difluorophenoxy}phenyl)-1,2-benzoxazol-3-yl]imidodicarbonate 、
4-(4-chloro-2-(2-oxo-2,3-dihydrobenzo[]oxazol-5-yl)phenoxy)N-(2,4-dimethoxybenzyl)-3-fluoro-N-(pyrimidin-2-yl)benzenesulfonamid 以4-(4-chloro-2-(2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl)phenoxy)-3-fluoro-N-(pyrimidin-2-yl)benzenesulfonamide was obtained a beige solid in 50% yield over two steps (0.054 g)的产率得到4-(4-chloro-2-(2-oxo-2,3-dihydrobenzo[d]oxazol-5-yl)phenoxy)-3-fluoro-N-(pyrimidin-2-yl)benzenesulfonamide