反应详情

A solution of 3-(ethylthio)-2-phenylquinoline-4-carboxylic acid (4) (269 mg, 0.87 mmol), HOBT hydrate (230 mg, 1.5 mmol), 4-methylmorpholine (164 μL, 1.5 mmol) in DCM (30 ml) was added EDC (289 mg, 1.5 mmol) at RT under N2. (S)-1-Phenyl propylamine (202 mg, 1.5 mmol) was then added and the reaction mixture stirred at RT for 12 h. All solvent was removed in vacuo and the residue was partitioned between ethyl acetate and 0.5 N HCl aqueous solution. The organic phase was washed with 10% aqueous sodium bicarbonate solution, brine, and dried over sodium sulfate. The organic solution was then concentrated in vacuo. The residue was purified by chromatography eluting with 15-25% ethyl acetate/hexane to give the title compound (315 mg, 85% yield) as a solid. 1H NMR (300 MHz, CDCl3) δ 0.96 (t, 3H), 1.22 (t, 3H), 2.0 (m, 2H), 2.40 (m, 2H), 5.28 (q, 1H), 7.20 (d, 2H), 7.34 (d, 2H), 7.39 (m, 2H), 7.78 (m, 2H), 7.84 (m, 2H), 8.00 (m, 1H), 8.11 (m, 2H), 8.15 (m, 2H). MS APCI, m/z=427 (M+1). LCMS: 2.82 min.

1. customAll solvent was removed in vacuo
2. customthe residue was partitioned between ethyl acetate and 0.5 N HCl aqueous solution
3. washThe organic phase was washed with 10% aqueous sodium bicarbonate solution, brine
4. dry with materialdried over sodium sulfate
5. concentrationThe organic solution was then concentrated in vacuo
6. customThe residue was purified by chromatography
7. washeluting with 15-25% ethyl acetate/hexane