反応式
[Br:1][C:2]1[C:3]([N:12]2[CH2:17][CH2:16][N:15]([CH2:18][C:19]3[N:20]=[C:21]([CH:24]([CH3:26])[CH3:25])[O:22][CH:23]=3)[CH2:14][CH2:13]2)=[C:4]([N+:9]([O-])=O)[C:5]([NH2:8])=[N:6][CH:7]=1.CCO.[O:30]1[CH2:35][CH2:34][N:33]([CH2:36][C:37]2[CH:44]=[CH:43][C:40]([CH:41]=O)=[CH:39][CH:38]=2)[CH2:32][CH2:31]1.[O-]S(S([O-])=O)=O.[Na+].[Na+]>CN(C=O)C>[Br:1][C:2]1[C:3]([N:12]2[CH2:17][CH2:16][N:15]([CH2:18][C:19]3[N:20]=[C:21]([CH:24]([CH3:26])[CH3:25])[O:22][CH:23]=3)[CH2:14][CH2:13]2)=[C:4]2[N:9]=[C:41]([C:40]3[CH:39]=[CH:38][C:37]([CH2:36][N:33]4[CH2:34][CH2:35][O:30][CH2:31][CH2:32]4)=[CH:44][CH:43]=3)[NH:8][C:5]2=[N:6][CH:7]=1参加物
反応条件
- 温度
- 85 °C
実験手順
To a mixture of 5-bromo-4-(4-((2-isopropyloxazol-4-yl)methyl)piperazin-1-yl)-3-nitropyridin-2-amine (0.065 g, 0.15 mmol), EtOH (0.85 mL), and DMF (0.15 mL), was added 4-(morpholinomethyl)benzaldehyde (0.040 g, 0.19 mmol) followed by a freshly prepared aqueous solution of Na2S2O4 (1M; 0.49 mL, 0.49 mmol). The reaction mixture was heated at 85° C. for 24 h, then allowed to cool to room temperature and the solvents were removed in vacuo. The residue was purified by column chromatography on a Biotage SP1 system eluting with methanol (10-30%) in ethyl acetate. The title compound was isolated as a pale yellow solid (0.002 g, 2.4%) after trituration with ether; 1H-NMR (500 Mz, DMSO-d6): δ 1.27 (d, J=7 Hz, 6H, iPr—CH3), 2.38 (m, 4H), 2.65 (m, 4H), 3.05 (m, 1H, iPr—CH), 3.44 (s, 2H, NCH2), 3.54 (s, 2H, NCH2), 3.59 (t, J=4.5 Hz, 4H), 3.66 (m, 4H), 7.47 (d, J=7.5 Hz, 2H, ArH), 7.87 (s, 1H, oxazole 5-H), 8.14 (d, J=8.0 Hz, 2H, ArH), 8.23 (s, 1H, imidazo[4,5-b]pyridine 5-H), 13.49 (br s, 1H, imidazo[4,5-b]pyridine N—H); LC (Method B)-MS (ESI, m/z) 2.43 min—580/582 [(M+H)+, Br isotopic pattern]. ESI-HRMS: Found: 580.2036, calculated for C28H35BrN7O2 (M+H)+: 580.2035.
後処理
- temperatureto cool to room temperature
- customthe solvents were removed in vacuo
- customThe residue was purified by column chromatography on a Biotage SP1 system
- washeluting with methanol (10-30%) in ethyl acetate
出典と根拠
- ORDレコード
- ord-703bb384489247fba6ab0e703df1ad46
- 出典データセット
- uspto-grants-2012_01
- 特許番号
- US08088761B2
関連ノート
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