Bromine → N-{4-[(3-bromo-1H-pyrrolo[2,3-b]pyridin-4-yl)oxy]-3,5-difluorophenyl}acetamide
反応式
[F:1][C:2]1[CH:3]=[C:4]([NH:19][C:20](=[O:22])[CH3:21])[CH:5]=[C:6]([F:18])[C:7]=1[O:8][C:9]1[CH:14]=[CH:13][N:12]=[C:11]2[NH:15][CH:16]=[CH:17][C:10]=12.[Br:23]Br>C(O)(=O)C.ClCCl>[Br:23][C:17]1[C:10]2[C:11](=[N:12][CH:13]=[CH:14][C:9]=2[O:8][C:7]2[C:6]([F:18])=[CH:5][C:4]([NH:19][C:20](=[O:22])[CH3:21])=[CH:3][C:2]=2[F:1])[NH:15][CH:16]=1参加物
反応条件
- 温度
- 10 °C
実験手順
1.05 g (3.45 mmol) of N-[3,5-difluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)phenyl]acetamide are dissolved in 35 ml of glacial acetic acid and, using an ice bath, cooled to about 10° C. 4.8 ml (4.8 mmol) of a 1M solution of bromine in dichloromethane are added, and the mixture is stirred at 20° C. for about 30 min, resulting in the precipitation of a solid. The solid is filtered off with suction and washed with ethyl acetate. The mother liquor is neutralized using conc. aqueous sodium hydroxide solution and extracted with ethyl acetate. The crystals that were filtered off with suction are dissolved in 3 ml of DMF. The mixture is diluted with ethyl acetate and extracted three times with 1N sodium hydroxide solution. The combined organic phases are dried over magnesium sulfate. The solvent is removed under reduced pressure. The product is reacted without further purification.
後処理
- customresulting in the precipitation of a solid
- filtrationThe solid is filtered off with suction
- washwashed with ethyl acetate
- extractionextracted with ethyl acetate
- filtrationThe crystals that were filtered off with suction
- dissolutionare dissolved in 3 ml of DMF
- additionThe mixture is diluted with ethyl acetate
- extractionextracted three times with 1N sodium hydroxide solution
- dry with materialThe combined organic phases are dried over magnesium sulfate
- customThe solvent is removed under reduced pressure
- customThe product is reacted without further purification
出典と根拠
- ORDレコード
- ord-a83bfafea191459ebbf3bfcdca39e61e
- 出典データセット
- uspto-grants-2012_12
- 特許番号
- US08329716B2
反応ノート
読み込み中…