反应详情

To a solution of 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-[1,2,4]oxadiazole-3-carboxylic acid ethyl ester (768 mg, 1.69 mmL, 1 eq) in THF (6 mL) LiBH4 (55 mg, 2.54 mmol, 1.5 eq) was added. The reaction mixture was stirred overnight and the solvent was evaporated. The residue was dissolved in EtOAc, washed with brine, and dried with anhydrous MgSO4. Filtration and removal of the solvent afforded the crude product which was subjected to silica gel column chromatography (eluent:CH2Cl2:MeOH 70:1) to give rise to pure product (497 mg). [5.01 min; 413 (M+1)]

1. customthe solvent was evaporated
2. dissolutionThe residue was dissolved in EtOAc
3. washwashed with brine
4. dry with materialdried with anhydrous MgSO4
5. filtrationFiltration and removal of the solvent
6. customafforded the crude product which