Trifluoroacetic acid → 3-{1-[4-(3,4-Difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-benzenesulfonamide

HRID 1928430ノート

反応式

HRID 1928430 の反応式
C([NH:5][S:6]([C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([C:15]2[N:16]=[CH:17][N:18]([C:20]3[N:25]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:23]=[C:22]([C:30]4[CH:35]=[CH:34][C:33]([F:36])=[C:32]([F:37])[CH:31]=4)[N:21]=3)[CH:19]=2)[CH:10]=1)(=[O:8])=[O:7])(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl>[F:37][C:32]1[CH:31]=[C:30]([C:22]2[CH:23]=[C:24]([C:26]([F:27])([F:28])[F:29])[N:25]=[C:20]([N:18]3[CH:19]=[C:15]([C:11]4[CH:10]=[C:9]([S:6]([NH2:5])(=[O:7])=[O:8])[CH:14]=[CH:13][CH:12]=4)[N:16]=[CH:17]3)[N:21]=2)[CH:35]=[CH:34][C:33]=1[F:36]

参加物

4

反応物 2

HCID 6422Trifluoroacetic acidHCID 57469077N-tert-Butyl-3-{1-[6-(3,4-difluoro-phenyl)-4-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-benzenesulfonamide

生成物 1

HCID 574690763-{1-[4-(3,4-Difluoro-phenyl)-6-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-benzenesulfonamide収率 13.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

To a cooled and stirred solution of N-tert-butyl-3-{1-[6-(3,4-difluoro-phenyl)-4-trifluoromethyl-pyrimidin-2-yl]-1H-imidazol-4-yl}-benzenesulfonamide (0.16 g) in dichloromethane (4 ml) was added TFA (4 ml) and the reaction mixture was allowed to stir at room temperature for 15 h. The mixture was evaporated to dryness, poured into 2N NaHCO3 solution (20 ml) and extracted with ethyl acetate (3×50 ml). The combined organic layers were washed with brine (50 ml), dried (MgSO4) and evaporated. Further purification by flash chromatography on silica gel (dichloromethane/MeOH) and crystallization (ethyl acetate/heptane) yielded the title compound as a white solid (0.019 g, 12%). MS (ISP) 482.1 [(M+H)+]; mp 241.5° C.

後処理

  1. temperatureTo a cooled
  2. customThe mixture was evaporated to dryness
  3. additionpoured into 2N NaHCO3 solution (20 ml)
  4. extractionextracted with ethyl acetate (3×50 ml)
  5. washThe combined organic layers were washed with brine (50 ml)
  6. dry with materialdried (MgSO4)
  7. customevaporated
  8. customFurther purification by flash chromatography
  9. customon silica gel (dichloromethane/MeOH) and crystallization (ethyl acetate/heptane)

出典と根拠

ORDレコード
ord-9a6473af990c45ff92d800afb8b25803
出典データセット
uspto-grants-2012_05
特許番号
US08183262B2

反応ノート

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