Hydroxyamine hydrochloride → 1,1,1-trifluoro-3-(1-(4-fluorophenyl)-1H-indazol-5-yloxy)-3-phenylpropan-2-one oxime

HRID 1098945

반응식

HRID 1098945 반응식
[F:1][C:2]([F:31])([F:30])[C:3](O)(O)[CH:4]([O:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[N:17]([C:21]1[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=1)[N:16]=[CH:15]2)[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.Cl.[NH2:33][OH:34]>N1C=CC=CC=1>[F:1][C:2]([F:31])([F:30])[C:3](=[N:33][OH:34])[CH:4]([O:11][C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[N:17]([C:21]1[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=1)[N:16]=[CH:15]2)[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1

참가 물질

4

반응 조건

온도
115 °C

실험 절차

1,1,1-trifluoro-3-(1-(4-fluorophenyl)-1H-indazol-5-yloxy)-3-phenylpropane-2,2-diol (147c) 1.22 g, 2.8 mmol) and hydroxylamine hydrochloride (3.32 g, 48 mmol) was mixed in pyridine (85 mL, dried over 4 Å MS). The mixture was stirred at 115° C. for 30 min, after which time HPLC analysis showed complete reaction. Solvent was evaporated and the residue partitioned between ethyl acetate and water. The phases were separated and the organic phase washed twice with water, followed by brine and then evaporated. The residue was subjected to chromatography (SiO2, gradient of 10-60% Ethyl acetate in Heptane) to afford somewhat impure 1,1,1-trifluoro-3-(1-(4-fluorophenyl)-1H-indazol-5-yloxy)-3-phenylpropan-2-one oxime as a 3:7 mixture of diastereomers (0.99 g, 82%).

후처리

  1. customreaction
  2. customSolvent was evaporated
  3. customthe residue partitioned between ethyl acetate and water
  4. customThe phases were separated
  5. washthe organic phase washed twice with water
  6. customevaporated

출처 및 근거

ORD 기록
ord-c646ec47c78349c494c33ff3e9e59ec1
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08143290B2

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