反応式
[CH2:1]([N:4]([CH2:8][C:9]1[S:13][C:12]([S:14]([N:17]2[CH2:22][CH2:21][CH:20]([C:23](N(OC)C)=[O:24])[CH2:19][CH2:18]2)(=[O:16])=[O:15])=[CH:11][CH:10]=1)[CH2:5][CH:6]=[CH2:7])[CH:2]=[CH2:3].[CH2:29]([Li])[CH2:30][CH2:31][CH2:32][CH2:33][CH3:34].Cl.CCO>C1COCC1>[CH2:1]([N:4]([CH2:8][C:9]1[S:13][C:12]([S:14]([N:17]2[CH2:18][CH2:19][CH:20]([C:23](=[O:24])[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][CH3:34])[CH2:21][CH2:22]2)(=[O:16])=[O:15])=[CH:11][CH:10]=1)[CH2:5][CH:6]=[CH2:7])[CH:2]=[CH2:3]参加物
反応物 3
生成物 1
試薬・触媒・溶媒 1
反応条件
- 温度
- -20 °C
実験手順
327b (376 mg, 0.88 mmol) was dissolved in anhydrous THF and cooled to −20° C. To this solution was added dropwise at −20° C. hexyllithium (2M in hexane) (2.46 mL, 6.2 mmol). The reaction was allowed to warm to rt. during 3 h and poured on 100 mL HCl/EtOH (5%). The aqueous phase was extracted with CH2Cl2 and the combined organic layers are washed with NaOH (2N) and brine, dried over MgSO4 and evaporated to dryness. The crude material was purified by flash chromatography on silica gel using cyclohexane/EtOAc 4:1 as eluent to obtain 186 mg (47%) of (327c) as a brownish oil: H1 NMR (CDCl3) δ 7.40 (d, J=3.6 Hz, 1H), 725 (d, J=3.6 1H), 5.95 (m, 2H), 5.50 (m, 4H), 4.32 (s, 2H), 3.70-3.50 (m, 6H), 2.50 (m, 2H), 2.32 (m, 3H), 1.85 (m, 2H), 1.68 (m, 2H), 1.46 (m, 2H), 0.130-1.12 (m, 6H), 0.80 (t, J=6.6 Hz, 3H), M/Z APCI: 453.2 (M+1)
後処理
- temperatureto warm to rt
- extractionThe aqueous phase was extracted with CH2Cl2
- washthe combined organic layers are washed with NaOH (2N) and brine
- dry with materialdried over MgSO4
- customevaporated to dryness
- customThe crude material was purified by flash chromatography on silica gel
出典と根拠
- ORDレコード
- ord-dea2927eacff4db5a585d502ae935fe6
- 出典データセット
- uspto-grants-2011_09
- 特許番号
- US08012995B1
関連ノート
読み込み中…