Chlorosuccinimide → 5-(6-Bromo-3-chloro-1H-pyrrolo[3,2-c]pyridin-2-yl)oxazole

反応式

[Br:1][C:2]1[N:7]=[CH:6][C:5]2[CH:8]=[C:9]([C:11]3[O:15][CH:14]=[N:13][CH:12]=3)[NH:10][C:4]=2[CH:3]=1.[Cl:16]N1C(=O)CCC1=O>CN(C=O)C.C(OCC)(=O)C>[Br:1][C:2]1[N:7]=[CH:6][C:5]2[C:8]([Cl:16])=[C:9]([C:11]3[O:15][CH:14]=[N:13][CH:12]=3)[NH:10][C:4]=2[CH:3]=1

参加物

実験手順

5-(6-Bromo-1H-pyrrolo[3,2-c]pyridin-2-yl)oxazole (Preparation 139, 80 mg 0.303 mmole) was dissolved in DMF (0.8 mL) and N-chlorosuccinimide (40.4 mg 0.303 mmole) was added. The reaction was stirred at room temperature for 48 hours. The reaction was diluted with ethyl acetate (20 mL) and washed with water (3×7 mL) and brine. The combined aqueous layers were back-washed with ethyl acetate. The organic layers were dried (MgSO4) and concentrated in vacuo to afford the title compound (86 mg). 1H-NMR (d6-acetone, 500 MHz): 7.66 (d, J=0.95 Hz, 1H), 7.84 (s, 1H), 8.40 (s, 1H), 8.66 (d, J=0.63 Hz, 1H), 11.62 (br s, 1H, NH).