反応式
Br[CH2:2][C:3]([C:5]1[C:18]([CH3:19])=[C:17]([C:20]#[N:21])[C:8]2[N:9]=[C:10]([C:12]([N:14]([CH3:16])[CH3:15])=[O:13])[O:11][C:7]=2[C:6]=1[F:22])=O.[C:23]([NH2:26])(=[S:25])[CH3:24].C(=O)([O-])[O-].[Cs+].[Cs+]>C1(C)C=CC=CC=1>[C:20]([C:17]1[C:8]2[N:9]=[C:10]([C:12]([N:14]([CH3:16])[CH3:15])=[O:13])[O:11][C:7]=2[C:6]([F:22])=[C:5]([C:3]2[N:26]=[C:23]([CH3:24])[S:25][CH:2]=2)[C:18]=1[CH3:19])#[N:21]参加物
5
反応条件
- 温度
- 100 °C
実験手順
Under nitrogen atmosphere, a toluene (100 ml) suspension of 6-bromoacetyl-4-cyano-7-fluoro-N,N,5-trimethyl-1,3-benzoxazole-2-carboxamide (I-128) (3.80 g, 10.3 mmol), thioacetamide (931 mg, 12.4 mmol) and cesium carbonate (4.36 g, 13.4 mmol) was stirred at 100° C. for 45 minutes. After cooling, the reaction liquid was filtered through Celite, the obtained filtrate was washed with water and saturated brine. Next, the organic layer was dried over anhydrous magnesium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The resulting residue was subjected to silica, gel column chromatography, and the eluate with n-hexane/ethyl acetate (1:1, v/v) gave the entitled compound (2.31 g, 65%) as a yellow solid.
後処理
- temperatureAfter cooling
- customthe reaction liquid
- filtrationwas filtered through Celite
- washthe obtained filtrate was washed with water and saturated brine
- dry with materialNext, the organic layer was dried over anhydrous magnesium sulfate
- filtrationfiltered
- concentrationthe filtrate was concentrated under reduced pressure
出典と根拠
- ORDレコード
- ord-50945d146f144516ad8a370e03d000f9
- 出典データセット
- uspto-grants-2010_06
- 特許番号
- US07737166B2
関連ノート
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