反应详情

To a mixture containing 4-[2-(3-Isopropyl-phenylamino)-1-methyl-1H-benzoimidazol-5-yloxy]-pyridine-2-carboxylic acid (2-amino-ethyl)-amide (1 eq) (prepared using previously described example 3), K2CO3 (5 eq), (0.2 M in a 5:1 mixture of acetonitrile and water) were added α-toluenesulfonyl chloride (1 eq) via syringe. The resulting heterogeneous mixture was allowed to stir for 1 hour at room temperature. The mixture was then diluted with water and extracted with dichloromethane. The organics were washed with water and a saturated solution of sodium chloride, dried with sodium sulfate and concentrated in vacuo to viscous oil. Purification by chromatography yielded 4-[2-(3-Isopropyl-phenylamino)-1-methyl-1H-benzoimidazol-5-yloxy]-pyridine-2-carboxylic acid (2-phenylmethanesulfonylamino-ethyl)-amide. MS: MH+ 599

1. customprepared
2. extractionextracted with dichloromethane
3. washThe organics were washed with water
4. dry with materiala saturated solution of sodium chloride, dried with sodium sulfate
5. concentrationconcentrated in vacuo to viscous oil
6. customPurification by chromatography