(S)-2-methyl-propane-2-sulfinic acid {1-[2,4-difluoro-3-(3-methylsulfonylamino-phenoxy)-phenyl]-2-pyridin-4-yl-ethyl}-amide 、
盐酸 、 以to give N-{3-[3-(1-amino-2-pyridin-4-yl-ethyl)-2,6-difluoro-phenoxy]-phenyl}-methane-sulfonamide (Example 108A) (270 mg) as an impure white powder的产率得到N-{3-[3-(1-amino-2-pyridin-4-yl-ethyl)-2,6-difluoro-phenoxy]-phenyl}-methane-sulfonamide