Tetrahydrofuran → 6-(cis-2-(Tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinic acid
反応式
[OH-].[Na+].O1CCCC1.[C:8]([O:12][C:13]([NH:15][C@H:16]1[CH2:21][CH2:20][CH2:19][CH2:18][C@H:17]1[NH:22][C:23]1[C:32]([F:33])=[CH:31][C:26]([C:27]([O:29]C)=[O:28])=[C:25]([Cl:34])[N:24]=1)=[O:14])([CH3:11])([CH3:10])[CH3:9]>CO>[C:8]([O:12][C:13]([NH:15][C@H:16]1[CH2:21][CH2:20][CH2:19][CH2:18][C@H:17]1[NH:22][C:23]1[C:32]([F:33])=[CH:31][C:26]([C:27]([OH:29])=[O:28])=[C:25]([Cl:34])[N:24]=1)=[O:14])([CH3:11])([CH3:9])[CH3:10]参加物
反応条件
- 温度
- 65 °C
実験手順
A 1N sodium hydroxide aqueous solution (15 ml) was added to a solution of tetrahydrofuran (30 ml) and methanol (30 ml) containing methyl 6-(cis-2-(tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinate (3.00 g), followed by stirring at 65° C. for 2 hours. The reaction mixture was cooled to room temperature, the solvent was distilled away under reduced pressure, and a saturated aqueous ammonium chloride solution, tetrahydrofuran, and ethyl acetate were added. The organic layer was collected, washed with saturated saline, and dried over anhydrous magnesium sulfate, and the solvent was distilled away under reduced pressure. Colorless oily matter of 6-(cis-2-(tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinic acid (3.00 g) was thus obtained.
後処理
- temperatureThe reaction mixture was cooled to room temperature
- distillationthe solvent was distilled away under reduced pressure
- additiona saturated aqueous ammonium chloride solution, tetrahydrofuran, and ethyl acetate were added
- customThe organic layer was collected
- washwashed with saturated saline
- dry with materialdried over anhydrous magnesium sulfate
- distillationthe solvent was distilled away under reduced pressure
出典と根拠
- ORDレコード
- ord-3601fb01f3f7418fa5e82cfb9740a555
- 出典データセット
- uspto-grants-2014_08
- 特許番号
- US08809371B2
反応ノート
読み込み中…