Lithium Hydroxide → 3-[4-(azetidin-1-ylcarbonyl)-2-fluorophenoxy]-5-[(1S)-2-hydroxy-1-methylethoxy]benzoic acid

HRID 20504ノート

反応式

HRID 20504 の反応式
[N:1]1([C:5]([C:7]2[CH:28]=[CH:27][C:10]([O:11][C:12]3[CH:13]=[C:14]([CH:19]=[C:20]([O:22][C@@H:23]([CH3:26])[CH2:24][OH:25])[CH:21]=3)[C:15]([O:17]C)=[O:16])=[C:9]([F:29])[CH:8]=2)=[O:6])[CH2:4][CH2:3][CH2:2]1.[OH-].[Li+]>C1COCC1.O>[N:1]1([C:5]([C:7]2[CH:28]=[CH:27][C:10]([O:11][C:12]3[CH:13]=[C:14]([CH:19]=[C:20]([O:22][C@@H:23]([CH3:26])[CH2:24][OH:25])[CH:21]=3)[C:15]([OH:17])=[O:16])=[C:9]([F:29])[CH:8]=2)=[O:6])[CH2:4][CH2:3][CH2:2]1

参加物

5

実験手順

Methyl 3-[4-(azetidin-1-ylcarbonyl)-2-fluorophenoxy]-5-[(1S)-2-hydroxy-1-methylethoxy]benzoate (100 mg, 0.25 mmol) was dissolved in THF (2.0 mL and water (0.2 mL) and solid lithium hydroxide (21 mg, 0.5 mmol) added. The resultant mixture was stirred at ambient temperature for 16 hours. Water (10 mL) was added and the mixture partially reduced in vacuo and then extracted with ethyl acetate. The aqueous liquors were acidified with 1M hydrochloric acid and re-extracted with ethyl acetate (2×10 mL). The extracts were combined, washed with brine, dried (MgSO4), filtered, and evaporated in vacuo to give the crude product which was used without further purification (70 mg).

後処理

  1. additionadded
  2. extractionextracted with ethyl acetate
  3. extractionre-extracted with ethyl acetate (2×10 mL)
  4. washwashed with brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customevaporated in vacuo

出典と根拠

ORDレコード
ord-1ecbd50443124bb3bd783689e52ee0b1
出典データセット
uspto-grants-2010_06
特許番号
US07745475B2

反応ノート

読み込み中…