Dimethylformamide → (S)-2-[2-cyclopropyl-8-fluoro-4-methyl-3-(4-pyrazol-1-ylbenzyl)quinolin-5-yloxy]propionic acid methyl ester

HRID 1922161

反応式

HRID 1922161 の反応式
[CH:1]1([C:4]2[C:13]([CH2:14][C:15]3[CH:20]=[CH:19][C:18]([N:21]4[CH:25]=[CH:24][CH:23]=[N:22]4)=[CH:17][CH:16]=3)=[C:12]([CH3:26])[C:11]3[C:10]([OH:27])=[CH:9][CH:8]=[C:7]([F:28])[C:6]=3[N:5]=2)[CH2:3][CH2:2]1.CN(C)C=O.C(=O)([O-])[O-].[K+].[K+].[CH3:40][O:41][C:42](=[O:46])[C@H:43](Cl)[CH3:44]>O>[CH3:40][O:41][C:42](=[O:46])[C@@H:43]([O:27][C:10]1[CH:9]=[CH:8][C:7]([F:28])=[C:6]2[C:11]=1[C:12]([CH3:26])=[C:13]([CH2:14][C:15]1[CH:20]=[CH:19][C:18]([N:21]3[CH:25]=[CH:24][CH:23]=[N:22]3)=[CH:17][CH:16]=1)[C:4]([CH:1]1[CH2:2][CH2:3]1)=[N:5]2)[CH3:44]

参加物

6

反応条件

温度
40 °C

実験手順

A mixture of 2-cyclopropyl-8-fluoro-4-methyl-3-(4-pyrazol-1-ylbenzyl)quinolin-5-ol (0.064 g), N,N-dimethylformamide (0.86 mL), potassium carbonate (0.071 g) and (R)-2-chloropropionic acid methyl ester (0.032 g) was stirred at 40° C. for 3 days. The mixture was cooled to 0° C., diluted with water (40 mL) and extracted with ethyl acetate (3×10 mL). The combined extracts were washed saturated aqueous sodium chloride solution, dried over magnesium sulfate and concentrated under reduced pressure. Purification of the residue by column chromatography on silica gel, eluting with a mixture of ethyl acetate and cyclohexane (0:1 to 4:6 by volume) gave title compound as a colourless oil (0.033 g).

後処理

  1. temperatureThe mixture was cooled to 0° C.
  2. extractionextracted with ethyl acetate (3×10 mL)
  3. washThe combined extracts were washed saturated aqueous sodium chloride solution
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customPurification of the residue by column chromatography on silica gel
  7. washeluting with a mixture of ethyl acetate and cyclohexane (0:1 to 4:6 by volume)

出典と根拠

ORDレコード
ord-f84b059ec89642fcbc68e46ef12cdc15
出典データセット
uspto-grants-2012_05
特許番号
US08173812B2

関連ノート

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