反应详情

温度

85 °C

To a mixture of 3-(2-{[4-chloro-3-(4-cyano-6-trifluoromethyl-pyridin-3-yl)-benzoyl]-methyl-amino}-phenoxy)-propionic acid 11-4 (272.9 mg, 0.54 mmol), CH3SO2NH2 (51.5 mg, 0.54 mmol) and K2CO3 (224.4 mg, 1.63 mmol) in dioxane (4.0 mL), was added diphenylphosphoryl azide (141 μL, 0.65 mmol). The mixture was heated at 85° C. for 3 hrs, diluted with water, acidified to pH 3 by NaHSO4 aqueous solution, then extracted with ethyl acetate. The organic solution was then dried, concentrated and purified by prep. TLC plate eluting with 4% MeOH in dichloromethane to afford 4-chloro-3-(4-cyano-6-trifluoromethyl-pyridin-3-yl)-N-{2-[2-(3-methylsulfonyl-ureido)-ethoxy]-phenyl}-N-methyl-benzamide 41-1 (20.5 mg). MS [M+H]+596.3; tR=7.29 min (method 2).

1. extractionextracted with ethyl acetate
2. customThe organic solution was then dried
3. concentrationconcentrated
4. custompurified by prep
5. washTLC plate eluting with 4% MeOH in dichloromethane