Trifluoroacetic acid → HCID 136337770、化合物
反応式
C([O:8][C:9]1[CH:18]=[C:17]2[C:12]([C:13]([O:19][C:20]3[CH:21]=[C:22]([NH:26][C:27]([NH:29][C:30]4[CH:34]=[C:33]([C:35]([CH3:38])([CH3:37])[CH3:36])[O:32][N:31]=4)=[O:28])[CH:23]=[CH:24][CH:25]=3)=[N:14][CH:15]=[N:16]2)=[CH:11][CH:10]=1)C1C=CC=CC=1.FC(F)(F)C(O)=O>>[C:35]([C:33]1[O:32][N:31]=[C:30]([NH:29][C:27]([NH:26][C:22]2[CH:23]=[CH:24][CH:25]=[C:20]([O:19][C:13]3[C:12]4[C:17](=[CH:18][C:9]([OH:8])=[CH:10][CH:11]=4)[N:16]=[CH:15][N:14]=3)[CH:21]=2)=[O:28])[CH:34]=1)([CH3:38])([CH3:36])[CH3:37]参加物
反応条件
- 温度
- 85 °C
実験手順
1-(3-(7-(Benzyloxy)quinazolin-4-yloxy)phenyl)-3-(5-tert-butylisoxazol-3-yl)urea (725 mg, 1.42 mmol) was treated with trifluoroacetic acid (7 mL) and heated at 85° C. for 3h. The solvent was removed under reduced pressure and the residue dissolved in ethyl acetate/water. The solution was neutralized with saturated sodium bicarbonate (pH=8) and the organic layer separated. After extraction of the aqueous phase with ethyl acetate, the organic fractions were combined, dried (MgSO4) and concentrated under reduced pressure. The solid was triturated with ethyl acetate to afford 1-(5-tert-butylisoxazol-3-yl)-3-(3-(7-hydroxyquinazolin-4-yloxy)phenyl)urea (358 mg, 60%) as a solid. 1H NMR (300 MHz, DMSO-d6) δ 10.92 (s, 1H), 9.64 (s, 1H), 9.07 (s, 1H), 8.58 (s, 1H), 8.24 (d, 1H), 7.57 (s, 1H), 7.41 (t, 1H), 7.30 (d, 2H), 7.20 (s, 1H), 6.97 (d, 1H) 6.49 (s, 1H), 1.27 (s, 9H); LC-MS (ESI) m/z 420 (M+H)+.
後処理
- customThe solvent was removed under reduced pressure
- dissolutionthe residue dissolved in ethyl acetate/water
- customthe organic layer separated
- extractionAfter extraction of the aqueous phase with ethyl acetate
- dry with materialdried (MgSO4)
- concentrationconcentrated under reduced pressure
- customThe solid was triturated with ethyl acetate
出典と根拠
- ORDレコード
- ord-ab4d70bcdc1c428392773c519f8963d7
- 出典データセット
- uspto-grants-2016_04
- 特許番号
- US09320739B2
反応ノート
読み込み中…