反応式
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]([C:17]2[CH:22]=[C:21]([C:23]([F:26])([F:25])[F:24])[CH:20]=[CH:19][C:18]=2F)=[N:15][OH:16])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CC(C)([O-])C.[K+]>C1COCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[C:17]3[CH:22]=[C:21]([C:23]([F:26])([F:25])[F:24])[CH:20]=[CH:19][C:18]=3[O:16][N:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]参加物
4
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
A solution of 4-[(2-Fluoro-5-trifluoromethyl-phenyl)-hydroxyimino-methyl]-piperidine-1-carboxylic acid tert-butyl ester (4.969 g, 0.013 M) in anhydrous THF (59 mL) was treated with Potassium tert-butoxide (13.4 mL of a 1M solution in THF, 0.0133 M-1.05 eq). The mixture was stirred at ambient temperature for 1 hour and then heated to 65° C. for 2 hours. The THF was removed under reduced pressure. The residue was dissolved in ethyl acetate (100 mL), washed with H2O (50 mL) and brine (50 mL) respectively. It was then dried over MgSO4, filtered and concentrated to give a solid (5 g) which was purified on silica ˜120 g, (eluting with ethylacetate heptane (30:70) to give the product as a white solid (2.69 g, 57%).
後処理
- temperatureheated to 65° C. for 2 hours
- customThe THF was removed under reduced pressure
- dissolutionThe residue was dissolved in ethyl acetate (100 mL)
- washwashed with H2O (50 mL) and brine (50 mL) respectively
- dry with materialIt was then dried over MgSO4
- filtrationfiltered
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-cc987dde104b489ab6857cf32d915e8a
- 出典データセット
- uspto-grants-2010_08
- 特許番号
- US07772252B2
関連ノート
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