反応式
C[O:2][C:3](=[O:18])[CH:4]([NH:9][C:10]([C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)=[O:11])[CH:5]([CH3:8])[CH2:6][CH3:7].C1COCC1.[Li+].[OH-].Cl>CO.O>[CH3:8][CH:5]([CH2:6][CH3:7])[CH:4]([NH:9][C:10]([C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)=[O:11])[C:3]([OH:18])=[O:2]参加物
7
反応条件
- 温度
- 25 °C
実験手順
To a solution of 3-methyl-2-[pyridine-3-carbonyl-amino]-pentanoic acid methyl ester (1.5 g, 5.9 mmol), in methanol (10 mL), THF (9 mL), was added LiOH (1.25 g, 29.9 mmol) dissolved in water (3 mL). The mixture was allowed to stir at room temperature (25° C.) over 3 h. Methanol and THF was stripped off from the reaction mass, acidified the reaction mass using 1.5N HCl (pH=2-3). Extracted the reaction mass with ethyl acetate (100 mL) thrice and dried over sodium sulphate and concentrated to obtain product as pale yellow solid (0.7 g, 50%).
後処理
- extractionExtracted the reaction mass with ethyl acetate (100 mL) thrice
- dry with materialdried over sodium sulphate
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-7d62649520f64d96b695ecfb33956a17
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08846721B2
関連ノート
読み込み中…