Dimethylformamide → 4-Amino-3-fluoro-N-[2-(4-fluorophenoxy)-2-methylpropyl]benzamide

HRID 401826

反応式

HRID 401826 の反応式
[NH2:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[CH:4][C:3]=1[F:11].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CN(C=O)C.C(N(CC)C(C)C)(C)C.[F:50][C:51]1[CH:62]=[CH:61][C:54]([O:55][C:56]([CH3:60])([CH3:59])[CH2:57][NH2:58])=[CH:53][CH:52]=1>>[NH2:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([NH:58][CH2:57][C:56]([O:55][C:54]2[CH:53]=[CH:52][C:51]([F:50])=[CH:62][CH:61]=2)([CH3:60])[CH3:59])=[O:8])=[CH:4][C:3]=1[F:11]

参加物

6

実験手順

To a mixture of 4-amino-3-fluorobenzoic acid (200.0 mg, 1.289 mmol) and HBTU (490 mg, 1.3 mmol) in DMF (2 mL, 20 mmol) at 0° C. were added N,N-diisopropylethylamine (0.67 mL, 3.9 mmol) and 2-(4-fluorophenoxy)-2-methylpropan-1-amine (Preparation 91, 280 mg, 1.5 mmol). The reaction mixture was slowly warmed to ambient temperature. The reaction mixture was quenched with an equal volume of saturated aqueous sodium bicarbonate and extracted with ethyl acetate (3×). The combined organic layers were washed successively with water, aqueous lithium chloride, and brine, dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified on the Isco (120 g cartridge, chloroform to 12% MeOH in chloroform).

後処理

  1. customThe reaction mixture was quenched with an equal volume of saturated aqueous sodium bicarbonate
  2. extractionextracted with ethyl acetate (3×)
  3. washThe combined organic layers were washed successively with water, aqueous lithium chloride, and brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified on the Isco (120 g cartridge, chloroform to 12% MeOH in chloroform)

出典と根拠

ORDレコード
ord-22e8725fd6f5442f8a53030995a82137
出典データセット
uspto-grants-2014_06
特許番号
US08741934B2

関連ノート

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