4-Aminopyridine → HCID 66599397、化合物

反応式

F[C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([O:14][CH3:15])[CH:9]=2)=[CH:4][C:3]=1[C:16]#[N:17].[N:18]1[CH:23]=[CH:22][C:21]([NH2:24])=[CH:20][CH:19]=1.CC([O-])(C)C.[K+]>CS(C)=O>[CH3:15][O:14][C:10]1[CH:9]=[C:8]([C:5]2[CH:6]=[CH:7][C:2]([NH:24][C:21]3[CH:22]=[CH:23][N:18]=[CH:19][CH:20]=3)=[C:3]([C:16]#[N:17])[CH:4]=2)[CH:13]=[CH:12][CH:11]=1

参加物

実験手順

To a solution of 4-fluoro-3′-methoxybiphenyl-3-carbonitrile (0.50 g, 2.20 mmol) in DMSO (4 mL) was added pyridine-4-amine (0.23 g, 2.42 mmol) and KOtBu (0.15 g, 1.38 mmol). The reaction stirred under nitrogen at room temperature for 12 h. The reaction mixture was partitioned between water and ethyl acetate, the layers were separated, the organics were washed with water, brine solution, dried over Na2SO4 and concentrated to give the crude product. The crude material was purified by silica gel column chromatography (DCM/(2M)NH4-MeOH=100/0−95/5) to afford 0.53 g of 3′-methoxy-4-(pyridine-4-ylamino)biphenyl-3-carbonitrile. MS (ESI) m/z 302.2 (M+H). 1H NMR MeOD) d ppm 8.24 (2H, d, J=6.41 Hz), 8.01 (1H, d, J=2.44 Hz), 7.93 (1H, dd, J=8.70, 2.29 Hz), 7.61 (1H, d, J=8.55 Hz), 7.40 (1H, t, J=7.93 Hz), 7.17-7.30 (2H, m), 6.92-7.05 (3H, m), 3.88 (3H, s).