反応式
N1C=CC=CC=1.[NH:7]([C:14]1[N:19]=[C:18]([C:20]2[N:24]([CH:25]([CH3:27])[CH3:26])[C:23]([CH:28]=O)=[N:22][CH:21]=2)[CH:17]=[CH:16][N:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.Cl.[NH2:31][OH:32].O>CCO>[NH:7]([C:14]1[N:19]=[C:18]([C:20]2[N:24]([CH:25]([CH3:27])[CH3:26])[C:23]([CH:28]=[N:31][OH:32])=[N:22][CH:21]=2)[CH:17]=[CH:16][N:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1参加物
実験手順
Pyridine (283 μl, 3.50 mmol) was added to a solution of 2-anilino-4-(2-formyl-1-isopropylimidazol-5-yl)pyrimidine (Example 10; 250 mg, 0.814 mmol) and hydroxylamine.hydrochloride (283 mg, 4.07 mmol) in EtOH (8 ml) and the reaction mixture heated at reflux for 1 hr. The mixture was allowed to cool, water (10 ml) was added and the EtOH was removed by evaporation. Further water (10 ml) was added to the aqueous residue and the precipitated solid was collected by filtration, washed with water and dried to give the title compound as a 9:1 mixture of E and Z isomers (142 mg, 54%) as a white solid. NMR: Major isomer: 1.47 (d, 6H), 5.70 (m, 1H), 6.95 (t, 1H), 7.10 (d, 1H), 7.31 (t, 2H), 7.60 (s,1 H) 7.69 (d, 2H), 8.25 (s, 1H), 8.50 (d, 1H), 9.50 (s, 1H), 11.70 (s, 1 H); Minor isomer: 1.47 (d,6H), 5.70 (m, 1H), 6.95 (t, 1H), 7.19 (d, 1H), 7.31 (t, 2H), 7.69 (d, 2H), 7.78 (s, 1H), 8.10 (s, 1H), 8.52 (d, 1H), 9.57 (s, 1H), 13.89 (s, 1 H); m/z 323.
後処理
- temperaturethe reaction mixture heated
- temperatureat reflux for 1 hr
- temperatureto cool
- customthe EtOH was removed by evaporation
- additionFurther water (10 ml) was added to the aqueous residue
- filtrationthe precipitated solid was collected by filtration
- washwashed with water
- customdried
出典と根拠
- ORDレコード
- ord-ea9d2c313a054777972219a5ea119fc5
- 出典データセット
- uspto-grants-2008_09
- 特許番号
- US07427626B2
関連ノート
読み込み中…