反应详情

(S)-2-Ethoxy-3-[4-{2-(4-[methylsulfonylamino]phenyl)ethoxy}phenyl]propanoic acid ethyl ester (0.17 g; 0.39 mmole) was dissolved in tetrahydrofuran (10 ml). Iodomethane (0.277 g; 1.95 mmole) and sodium hydride (0.019 g; 0.79 mmole) were added and the reaction mixture was stirred at room temperature for 3 hours and then evaporated. The residue was redissolved and extracted with diethyl ether and water. The organic phase was washed once more with water, dried with sodium sulfate and evaporated. Chromatography with ethyl acetate:petroleum ether (1:1) gave 0.098 g (55.8% yield) of (S)-2-ethoxy-3-[4-{2-(4-[methylsulfonyl(methyl)amino]phenyl)ethoxy}phenyl]propanoic acid ethyl ester.

1. customevaporated
2. dissolutionThe residue was redissolved
3. extractionextracted with diethyl ether and water
4. washThe organic phase was washed once more with water
5. dry with materialdried with sodium sulfate
6. customevaporated