2-Bromo-4'-methylacetophenone → Fatostatin A
反応式
[CH3:1][CH2:2][CH2:3][C:4]1[CH:5]=[C:6]([C:10]([NH2:12])=[S:11])[CH:7]=[CH:8][N:9]=1.Br[CH2:14][C:15]([C:17]1[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=1)=O>C(O)C>[CH3:1][CH2:2][CH2:3][C:4]1[CH:5]=[C:6]([C:10]2[S:11][CH:14]=[C:15]([C:17]3[CH:18]=[CH:19][C:20]([CH3:23])=[CH:21][CH:22]=3)[N:12]=2)[CH:7]=[CH:8][N:9]=1参加物
4
反応条件
- 温度
- 70 °C
実験手順
A mixture of prothionamide (1.03 g, 5.70 mmol) and 2-bromo-4′-methylacetophenone (1.22 g, 5.70 mmol) in ethanol (20 ml) was heated at 70° C. with stirring for 0.5 h, and then cooled to 0° C. A yellow precipitate formed was filtered, washed with cold ethanol, and dried to give 2-propyl-4-(4-p-tolylthiazol-2-yl)pyridine (fatostatin) 1 HBr salt (1.78 g, 83%) as yellow needles. mp: 190-193° C.; 1H NMR (600 MHz, DMSO-d6): δ 8.88 (d, J=6.2 Hz, 1H), 8.54 (s, 1H), 8.46 (d, J=1.4 Hz, 1H), 8.36 (dd, J=1.4, 6.2 Hz, 1H), 7.99 (d, J=7.6 Hz, 2H), 7.31 (d, J=7.6 Hz, 2H), 3.03 (t, J=7.6 Hz, 2H), 2.35 (s, 3H), 1.80 (m, 2H), 0.96 (t, J=7.6 Hz, 3H); 13C NMR (150 MHz, DMSO-d6): d 161.3, 158.5, 156.9, 146.2, 143.2, 138.4, 130.4, 129.5, 126.3, 122.3, 120.3, 119.5, 35.0, 22.4, 20.9, 13.4; HRMS (m/z): [M+H]+ calcd for C18H19N2S, 295.1269. found, 295.1269.