Trifluoroacetic acid → 4-(3-amino-6-(tetrahydro-2H-pyran-4-yl)pyrazin-2-yl)-2-fluorobenzoic acid
反応式
[NH2:1][C:2]1[C:3]([C:14]2[CH:26]=[CH:25][C:17]([C:18]([O:20]C(C)(C)C)=[O:19])=[C:16]([F:27])[CH:15]=2)=[N:4][C:5]([CH:8]2[CH2:13][CH2:12][O:11][CH2:10][CH2:9]2)=[CH:6][N:7]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl.C1(C)C=CC=CC=1>[NH2:1][C:2]1[C:3]([C:14]2[CH:26]=[CH:25][C:17]([C:18]([OH:20])=[O:19])=[C:16]([F:27])[CH:15]=2)=[N:4][C:5]([CH:8]2[CH2:13][CH2:12][O:11][CH2:10][CH2:9]2)=[CH:6][N:7]=1参加物
5
実験手順
To a solution of tert-butyl 4-(3-amino-6-(tetrahydro-2H-pyran-4-yl)pyrazin-2-yl)-2-fluorobenzoate (4.5 g, 12.05 mmol) in DCM (60.3 mL) was added TFA (60.3 mL). The reaction mixture was stirred for 2 h. After diluted with toluene (30 mL), the volatile materials were removed in vacuo twice to provide 4-(3-amino-6-(tetrahydro-2H-pyran-4-yl)pyrazin-2-yl)-2-fluorobenzoic acid (5.2 g, 12.06 mmol, 100%) as a TFA salt. The crude product was used for the next step without further purification. LCMS (m/z): 318.5 (MH+), 0.55 min.
後処理
- customthe volatile materials were removed in vacuo twice
出典と根拠
- ORDレコード
- ord-92c9a3dc844a4c4e8219fc446f5cde47
- 出典データセット
- uspto-grants-2016_01
- 特許番号
- US09242996B2
反応ノート
読み込み中…