Water → (S)-2-Acetylamino-4-dibenzofuran-2-yl-4-oxo-butyric acid
反応式
[NH2:1][C@@H:2]([CH2:6][C:7]([C:9]1[CH:21]=[CH:20][C:12]2[O:13][C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[C:11]=2[CH:10]=1)=[O:8])[C:3]([OH:5])=[O:4].O.[C:23](OC(=O)C)(=[O:25])[CH3:24]>>[C:23]([NH:1][C@@H:2]([CH2:6][C:7]([C:9]1[CH:21]=[CH:20][C:12]2[O:13][C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=3[C:11]=2[CH:10]=1)=[O:8])[C:3]([OH:5])=[O:4])(=[O:25])[CH3:24]参加物
4
実験手順
A suspension of (S)-2-amino-4-dibenzofuran-2-yl-4-oxo-butyric acid (0.025 g, 0.000082 mol) obtained above in Example 3 in acetic anhydride (2 mL) and water (4 mL) was sonicated (Cole Parmer 8850 Ultrasound Bath) for 15 minutes at room temperature. The resulting solution was then concentrated in vacuo, and the resulting residue was recrystallized from ethyl acetate/diethyl ether (50:50, v/v) to yield the title product as a white solid; mp 166-170° C.
後処理
- concentrationThe resulting solution was then concentrated in vacuo
- customthe resulting residue was recrystallized from ethyl acetate/diethyl ether (50:50
出典と根拠
- ORDレコード
- ord-cc612f1cba554f73be4d2dd05f786133
- 出典データセット
- uspto-grants-2000_02
- 特許番号
- US06020366
反応ノート
読み込み中…