反应详情

Into a 100 mL single-neck flask, 71 mg of butyryl chloride was added dropwise to 200 mg {2-[4-(3-aminophenyl)phenyl]-2-fluoropropyl}[(methylethyl)sulfonyl]amine (prepared in example 5) and 63 mg of triethylamine in THF (25 mL) while stirring under a nitrogen atmosphere at room temperature. The reaction was allowed to stir at this temperature for 2 h. The mixture was then poured into H2O and the desired product was extracted into ethyl acetate. The organic layer was backwashed once with H2O, dried over K2CO3, and concentrated under reduced vacuum to yield 211 mg as an oil. This material was purified via silica gel chromatography employing the Chromatotron, using a 4000 micron rotor and eluting with a solvent of hexane/ethyl acetate 1:1 to yield the title compound (130 mg, 54%) as a white foam. Ion spray M.S. 419.2 (M*−1).

1. stirringto stir at this temperature for 2 h
2. extractionthe desired product was extracted into ethyl acetate
3. dry with materialdried over K2CO3
4. concentrationconcentrated under reduced vacuum
5. customto yield 211 mg as an oil
6. customThis material was purified via silica gel chromatography
7. washeluting with a solvent of hexane/ethyl acetate 1:1