Potassium Carbonate → 5-bromo-N-methyl-2-(4-methyl-2-oxopyridin-1(2H)-yl)-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide

HRID 595661ノート

反応式

HRID 595661 の反応式
[Br:1][C:2]1[C:3]([N:16]([CH3:21])[S:17]([CH3:20])(=[O:19])=[O:18])=[CH:4][C:5]2[O:9][C:8](I)=[C:7]([C:11]([NH:13][CH3:14])=[O:12])[C:6]=2[CH:15]=1.[CH3:22][C:23]1[CH:28]=[CH:27][N:26]=[C:25]([OH:29])[CH:24]=1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[Br:1][C:2]1[C:3]([N:16]([CH3:21])[S:17]([CH3:20])(=[O:19])=[O:18])=[CH:4][C:5]2[O:9][C:8]([N:26]3[CH:27]=[CH:28][C:23]([CH3:22])=[CH:24][C:25]3=[O:29])=[C:7]([C:11]([NH:13][CH3:14])=[O:12])[C:6]=2[CH:15]=1

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 903324695-bromo-2-iodo-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamideHCID 178428601HCID 178428601、化合物

生成物 1

HCID 903330925-bromo-N-methyl-2-(4-methyl-2-oxopyridin-1(2H)-yl)-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide収率 83%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
80 °C

実験手順

To a mixture of 5-bromo-2-iodo-N-methyl-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (500 mg, 1.03 mmol), 4-methylpyridin-2-ol (168 mg, 1.54 mmol) and K2CO3 (283 mg, 2.05 mmol) in DMF (5 mL) was stirred at 80° C. for 10 hours and concentrated in vacuo to remove DMF. The reaction mixture was extracted with EtOAc, washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography (PE:EtOAc=1:1) to give the product of 5-bromo-N-methyl-2-(4-methyl-2-oxopyridin-1 (2H)-yl)-6-(N-methylmethylsulfonamido)benzofuran-3-carboxamide (400 mg, yield: 83%). 1H-NMR (CDCl3, 400 MHz) δ 8.32 (s, 1H), 7.85 (s, 1H), 7.67 (s, 1H), 7.22 (d, J=7.2 Hz, 1H), 6.52 (s, 1H), 6.28 (d, J=1.6 Hz, 1H), 3.32 (s, 3H), 3.06 (s, 3H), 2.89 (d, J=4.8 Hz, 3H), 2.31 (s, 3H). MS (M+H)+: 468/470.

後処理

  1. concentrationconcentrated in vacuo
  2. customto remove DMF
  3. extractionThe reaction mixture was extracted with EtOAc
  4. washwashed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by column chromatography (PE:EtOAc=1:1)

出典と根拠

ORDレコード
ord-c140e2d702424fe896a42020c019e8e5
出典データセット
uspto-grants-2016_01
特許番号
US09243002B2

反応ノート

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