2-Fluoro-5-formylpyridine → 3-(4-sec-butylphenyl)-2-(6-fluoropyridin-3-yl)quinazolin-4(3H)-one
反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]=O)=[CH:4][N:3]=1.[NH2:10][C:11]1[CH:29]=[CH:28][CH:27]=[CH:26][C:12]=1[C:13]([NH:15][C:16]1[CH:21]=[CH:20][C:19]([CH:22]([CH2:24][CH3:25])[CH3:23])=[CH:18][CH:17]=1)=[O:14]>CCO>[CH:22]([C:19]1[CH:20]=[CH:21][C:16]([N:15]2[C:13](=[O:14])[C:12]3[C:11](=[CH:29][CH:28]=[CH:27][CH:26]=3)[N:10]=[C:8]2[C:5]2[CH:4]=[N:3][C:2]([F:1])=[CH:7][CH:6]=2)=[CH:17][CH:18]=1)([CH2:24][CH3:25])[CH3:23]参加物
実験手順
2-fluoro-5-formylpyridine (0.55 mmol) and anyhydrous CuCl2 (0.150 g, 1.10 mmol) were added to a solution of 2-amino-N-(4-sec-butylphenyl)benzamide (0.205 g, 0.55 mmol) in anyhydrous EtOH (10 mL). After heating at reflux temperature for 2.5 hours, the mixture was concentrated in vacuo. The residue was dissolved in EtOAc and washed with H2O, then brine, dried (Na2SO4), filtered, and concentrated in vacuo. Purification by flash chromatography on silica gel, eluting with 2% to 50% EtOAc in heptane, afforded the title compound as a white solid (15%). 1H-NMR (300 MHz, DMSO-d6): δ 8.17-8.33 (m, 2H), 7.87-8.02 (m, 2H), 7.80 (d, J=8.1 Hz, 1H), 7.62-7.66 (m, 1H), 7.23-7.33 (m, 2H), 7.12-7.22 (m, 2H), 6.98-7.11 (m, 1H), 2.54-2.65 (m, 1H), 1.32-1.66 (m, 2H), 1.15 (d, J=6.9 Hz, 3H), 0.60 (t, J=7.4 Hz, 3H). MS (APCI) m/z: 374 (M+H)+.
後処理
- temperatureAfter heating
- temperatureat reflux temperature for 2.5 hours
- concentrationthe mixture was concentrated in vacuo
- dissolutionThe residue was dissolved in EtOAc
- washwashed with H2O
- dry with materialbrine, dried (Na2SO4)
- filtrationfiltered
- concentrationconcentrated in vacuo
- customPurification by flash chromatography on silica gel
- washeluting with 2% to 50% EtOAc in heptane
出典と根拠
- ORDレコード
- ord-d00705f8a2b84700a781fac98d811786
- 出典データセット
- uspto-grants-2015_02
- 特許番号
- US08952021B2
反応ノート
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