反应详情

To a stirred solution of phenyl 3-(6-amino-3,4-dihydroquinolin-1(2H)-yl)propyl(methyl)carbamate (830 mg, 2.445 mmol) in ethanol (35 ml) under argon was added methyl thiophene-2-carbimidothioate hydroiodide (1395 mg, 4.89 mmol). The resulting suspension was stirred overnight at room temperature. The reaction mixture was then diluted with water and sodium carbonate (sat) and extracted with dichloromethane. The combine organics were dried, filtered and concentrated, then chromatographed in 1:1 ethyl acetate in hexanes, then ethyl acetate, followed by 5% (2M NH3 in methanol) in 1:1 ethyl acetate dichloromethane, giving the desired phenyl methyl(3-(6-(thiophene-2-carboximidamido)-3,4-dihydroquinolin-1(2H)-yl)propyl)carbamate (630 mg, 1.404 mmol, 57.4% yield). 1H NMR (DMSO-d6) δ 7.67 (d, J=3 Hz, 1H), 7.55 (d, J=4.8 Hz, 1H), 7.41-7.35 (m, 2H), 7.23-7.21 (m, 1H), 7.13-7.05 (m, 3H), 6.56 (m, 2H), 6.49 (brs, 1H), 6.25 (brs, 2H), 3.50-3.45 (m, 2H), 3.38-3.32 (m, 2H), 3.23-3.19 (m, 2H), 3.06, 2.93 (2s, 3H), 2.69-2.64 (m, 2H), 1.89-1.81 (m, 4H).

1. extractionextracted with dichloromethane
2. customThe combine organics were dried
3. filtrationfiltered
4. concentrationconcentrated
5. customchromatographed in 1:1 ethyl acetate in hexanes