Sodium Hydroxide → 3-Acetyl-4-(2-isopropylphenyl)-6-methyl-1-carboxymethyl-2-pyridinone
反応式
[C:1]([C:4]1[C:5](=[O:26])[N:6]([CH2:20][C:21]([O:23]CC)=[O:22])[C:7]([CH3:19])=[CH:8][C:9]=1[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[CH:16]([CH3:18])[CH3:17])(=[O:3])[CH3:2].[OH-].[Na+]>C(O)C>[C:1]([C:4]1[C:5](=[O:26])[N:6]([CH2:20][C:21]([OH:23])=[O:22])[C:7]([CH3:19])=[CH:8][C:9]=1[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=1[CH:16]([CH3:18])[CH3:17])(=[O:3])[CH3:2]参加物
4
実験手順
To a stirred solution of 3-acetyl-4-(2-isopropylphenyl)-6-methyl-1-ethoxycarbonylmethyl-2-pyridinone from step 3 of Example XX (0.20 g, 0.56 mmol) in ethanol (4 mL) was added aqueous NaOH (0.62 mL of a 1.0 N solution, 0.62 mmol). The resulting solution was stirred at ambient temperature for 2 h and the solvent was removed in vacuo. The residue was partitioned between EtOAc and 1.0 N aqueous HCl. The organic phase was separated and the aqueous phase was extracted with EtOAc. The combined organic extracts were dried over Na2SO4, filtered, and concentrated in vacuo to give the title compound (HPLC RT=18.11 min, method B).
後処理
- customthe solvent was removed in vacuo
- customThe residue was partitioned between EtOAc and 1.0 N aqueous HCl
- customThe organic phase was separated
- extractionthe aqueous phase was extracted with EtOAc
- dry with materialThe combined organic extracts were dried over Na2SO4
- filtrationfiltered
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-bdd5c6c64fa04af9a393582da96f25e1
- 出典データセット
- uspto-grants-2003_08
- 特許番号
- US06610692B1
反応ノート
読み込み中…