Trifluoroacetic acid → 2-[(4-{2-[(4-Bromobenzyl)(5-ethylpyrimidin-2-yl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid

HRID 914493ノート

反応式

HRID 914493 の反応式
C([O:5][C:6](=[O:35])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][N:18]([CH2:27][C:28]2[CH:33]=[CH:32][C:31]([Br:34])=[CH:30][CH:29]=2)[C:19]2[N:24]=[CH:23][C:22]([CH2:25][CH3:26])=[CH:21][N:20]=2)[N:15]=1)([CH3:9])[CH3:8])(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[Br:34][C:31]1[CH:32]=[CH:33][C:28]([CH2:27][N:18]([C:19]2[N:20]=[CH:21][C:22]([CH2:25][CH3:26])=[CH:23][N:24]=2)[CH2:17][CH2:16][C:14]2[N:15]=[C:11]([S:10][C:7]([CH3:8])([CH3:9])[C:6]([OH:35])=[O:5])[S:12][CH:13]=2)=[CH:29][CH:30]=1

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 597592542-[(4-{2-[(4-Bromobenzyl)(5-ethylpyrimidin-2-yl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl ester

生成物 1

HCID 597589612-[(4-{2-[(4-Bromobenzyl)(5-ethylpyrimidin-2-yl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid収率 75.9%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

2-[(4-{2-[(4-Bromobenzyl)(5-ethylpyrimidin-2-yl)amino]ethyl}-1,3-thiazol-2-yl)thio]-2-methylpropionic acid tert-butyl ester (350 mg) obtained in Example 402-1 was dissolved in dichloromethane (6 mL), trifluoroacetic acid (2 mL) was added, and the mixture was stirred at room temperature for 20 hr. The reaction mixture was concentrated under reduced pressure, ethyl acetate was added, and the mixture was washed with saturated aqueous sodium hydrogen carbonate solution (at this time point, the object product had been extracted in the ethyl acetate layer). The ethyl acetate layer was washed with aqueous 10% citric acid solution and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1) to give the title compound (240 mg) as a white solid.

後処理

  1. concentrationThe reaction mixture was concentrated under reduced pressure, ethyl acetate
  2. additionwas added
  3. washthe mixture was washed with saturated aqueous sodium hydrogen carbonate solution (at this time point
  4. extractionthe object product had been extracted in the ethyl acetate layer)
  5. washThe ethyl acetate layer was washed with aqueous 10% citric acid solution and saturated brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. customThe solvent was evaporated under reduced pressure
  8. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=1:1 to 0:1)

出典と根拠

ORDレコード
ord-18557d0a41a748d0b40ffa6f3bb4c3f5
出典データセット
uspto-grants-2011_09
特許番号
US08026370B2

反応ノート

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