Lithium Hydroxide → (S)-1-(3,4,5-trimethoxybenzoyl)-3-(3,4-dichlorophenyl)-3-(2-hydroxyethyl)pyrrolidine

HRID 1601425ノート

反応式

HRID 1601425 の反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:27]=[C:28]([O:32][CH3:33])[C:29]=1[O:30][CH3:31])[C:6]([N:8]1[CH2:12][CH2:11][C:10]([C:19]2[CH:24]=[CH:23][C:22]([Cl:25])=[C:21]([Cl:26])[CH:20]=2)([CH2:13][CH2:14][O:15]C(=O)C)[CH2:9]1)=[O:7].[OH-].[Li+]>CO.ClCCl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:27]=[C:28]([O:32][CH3:33])[C:29]=1[O:30][CH3:31])[C:6]([N:8]1[CH2:12][CH2:11][C@@:10]([C:19]2[CH:24]=[CH:23][C:22]([Cl:25])=[C:21]([Cl:26])[CH:20]=2)([CH2:13][CH2:14][OH:15])[CH2:9]1)=[O:7]

参加物

5

実験手順

Combine (+)-1-(3,4,5-trimethoxybenzoyl)-3-(3,4-dichlorophenyl)-3-(2-acetoxyethyl)pyrrolidine (670 mg, 1.35 mmol) and aqueous lithium hydroxide solution (4.2 mL, 1M) in methanol (15 mL). After 3.5 hours, concentrate in vacuo to give a residue. Dissolve the residue in dichloromethane and extract with 1M hydrochloric acid solution and saturated sodium bicarbonate solution. Dry the organic layer over MgSO4, filter, and concentrate in vacuo to obtain a residue. The residue was dried under high vacuum for 18 hours to give (S)-1-(3,4,5-trimethoxybenzoyl)-3-(3,4-dichlorophenyl)-3-(2-hydroxyethyl)pyrrolidine: Rf =0.11 (silica gel, ethyl acetate).

後処理

  1. concentrationconcentrate in vacuo
  2. customto give a residue
  3. extractionextract with 1M hydrochloric acid solution and saturated sodium bicarbonate solution
  4. dry with materialDry the organic layer over MgSO4
  5. filtrationfilter
  6. concentrationconcentrate in vacuo
  7. customto obtain a residue
  8. customThe residue was dried under high vacuum for 18 hours

出典と根拠

ORDレコード
ord-7ec03132154947b08646957f05f8a877
出典データセット
uspto-grants-1999_11
特許番号
US05977139

反応ノート

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