反应详情

温度

25 °C

To a solution of 3-(5-allyl-benzothiazol-2-ylmethoxy)-2,6-difluoro-benzamide (0.1 g, 0.27 mmol) in 5 ml of anhydrous methanol was added to 20 mg of dry Pd—C. The reaction mixture was stirred at 25° C. for 12 h under hydrogen atmosphere. The reaction mixture was filtered over the celite bed. The filtrate was evaporated to dryness under reduced pressure and the compound was crystallized with ethyl acetate/hexane to give the title compound as light yellow solid (0.014 g, 14%). 1H NMR (DMSO-d6, 400 MHz): δ 0.92 (t, 3H, J=7.2 Hz), 1.62-1.68 (m, 2H), 2.71, 2H, J=7.2 Hz), 5.67 (s, 2H), 7.12 (dt, 1H, J=8.8 Hz (o-coupling) J=1.6 Hz), 7.32 (d, 1H, J=8.4 (o-coupling), 7.38 (dt, 1H, J=9.2 Hz (o-coupling), J=5.2 Hz), 7.83 (s, 1H), 7.89 (broad s, 1H), 8.01 (d, 1H, J=8.4 Hz (o-coupling). 8.17 (broad s, 1H). MS ES+ (363.08), HPLC (method 5) Rt=17.64 min.

1. filtrationThe reaction mixture was filtered over the celite bed
2. customThe filtrate was evaporated to dryness under reduced pressure
3. customthe compound was crystallized with ethyl acetate/hexane