Trifluoroacetic acid → 3-Fluoro4-[4-pyridin-4-yl-1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-3-yl]-phenol

HRID 33903ノート

反応式

HRID 33903 の反応式
C([O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[C:19]([C:20]3[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=3)=[CH:18][N:17]([CH2:26][C:27]([F:30])([F:29])[F:28])[N:16]=2)=[C:11]([F:31])[CH:10]=1)C1C=CC=CC=1.FC(F)(F)C(O)=O.C1(OC)C=CC=CC=1>>[F:31][C:11]1[CH:10]=[C:9]([OH:8])[CH:14]=[CH:13][C:12]=1[C:15]1[C:19]([C:20]2[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=2)=[CH:18][N:17]([CH2:26][C:27]([F:28])([F:29])[F:30])[N:16]=1

参加物

4

反応物 3

HCID 6422Trifluoroacetic acidHCID 7519AnisoleHCID 685753054-[3-(4-Benzyloxy-2-fluoro-phenyl)-1-(2,2,2-trifluoroethyl)-1H-pyrazol-4-yl]-pyridine

生成物 1

HCID 1363758193-Fluoro4-[4-pyridin-4-yl-1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-3-yl]-phenol収率 77.7%

実験手順

To 4-[3-(4-Benzyloxy-2-fluoro-phenyl)-1-(2,2,2-trifluoro-ethyl)-1H-pyrazol-4-yl]-pyridine (900 mg) was added trifluoroacetic acid (5.25 ml) and anisole (1.15 ml) and the reaction mixture heated at reflux for 18 h. The reaction mixture was quenched with with 1N NaOH, extracted 3× tetrahydrofuran, dried magnesium sulfate, filtered and concentrated. Purification via Biotage MPLC eluting with 5% methanol/1% ammonium hydroxide/ethyl acetate provided the title compound (552 mg). MS: (M+H m/z=338.2).

後処理

  1. temperaturethe reaction mixture heated
  2. temperatureat reflux for 18 h
  3. customThe reaction mixture was quenched with with 1N NaOH
  4. extractionextracted 3× tetrahydrofuran, dried magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification via Biotage MPLC
  8. washeluting with 5% methanol/1% ammonium hydroxide/ethyl acetate

出典と根拠

ORDレコード
ord-1259400062a3441893578f2824f3665d
出典データセット
uspto-grants-2008_09
特許番号
US07429665B2

反応ノート

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