N-bromobutanimide → 7-Bromo-5-methyl-1-tosyl-1H-indol-4-amine

HRID 2174055ノート

反応式

HRID 2174055 の反応式
[CH3:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7]([S:11]([C:14]3[CH:20]=[CH:19][C:17]([CH3:18])=[CH:16][CH:15]=3)(=[O:13])=[O:12])[CH:6]=[CH:5][C:4]=2[C:3]=1[NH2:21].C1C(=O)N([Br:29])C(=O)C1>CN(C=O)C>[Br:29][C:9]1[C:8]2[N:7]([S:11]([C:14]3[CH:20]=[CH:19][C:17]([CH3:18])=[CH:16][CH:15]=3)(=[O:13])=[O:12])[CH:6]=[CH:5][C:4]=2[C:3]([NH2:21])=[C:2]([CH3:1])[CH:10]=1

参加物

4

反応物 2

HCID 67184N-bromobutanimideHCID 867016685-Methyl-1-tosyl-1H-indol-4-amine

生成物 1

HCID 867016777-Bromo-5-methyl-1-tosyl-1H-indol-4-amine

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
0 °C

実験手順

To a solution of 5-methyl-1-tosyl-1H-indol-4-amine (Example 110-F) (1.06 g, 3.53 mmol) in DMF (35.3 mL) at 0° C. was added NBS (0.628 g, 3.53 mmol), and the mixture was stirred at 0° C. After 5 minutes the reaction was quenched with sat. aq. NaHCO3, then with sat. aq. sodium thiosulfate, extracted with EtOAc (2×), dried over MgSO4, filtered and concentrated. The resulting residue was purified by flash chromatography (0-80% EtOAc in heptanes) to provide the title compound, which was used in the next reaction without any further purification. MS (ESI+) m/z 379.0, 380.9 (M+H).

後処理

  1. customAfter 5 minutes the reaction was quenched with sat. aq. NaHCO3
  2. extractionwith sat. aq. sodium thiosulfate, extracted with EtOAc (2×)
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe resulting residue was purified by flash chromatography (0-80% EtOAc in heptanes)

出典と根拠

ORDレコード
ord-fb0dccd38a4a412e9b371ef4f26bdce0
出典データセット
uspto-grants-2015_06
特許番号
US09056874B2

反応ノート

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