Lithium Hydroxide → cis(+/-)-5-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-2-methylthiophene-3-carboxylic acid

HRID 43818ノート

反応式

HRID 43818 の反応式
[Cl:1][C:2]1[N:3]=[C:4]([C:9]([NH:11][C@H:12]2[CH2:17][CH2:16][N:15]([C:18]3[S:22][C:21]([CH3:23])=[C:20]([C:24]([O:26]C)=[O:25])[CH:19]=3)[CH2:14][C@H:13]2[O:28][CH3:29])=[O:10])[NH:5][C:6]=1[CH2:7][CH3:8].[OH-].[Li+]>CO.C1COCC1>[Cl:1][C:2]1[N:3]=[C:4]([C:9]([NH:11][C@H:12]2[CH2:17][CH2:16][N:15]([C:18]3[S:22][C:21]([CH3:23])=[C:20]([C:24]([OH:26])=[O:25])[CH:19]=3)[CH2:14][C@H:13]2[O:28][CH3:29])=[O:10])[NH:5][C:6]=1[CH2:7][CH3:8]

参加物

5

反応物 2

HCID 3939Lithium HydroxideHCID 67549887HCID 67549887、化合物

生成物 1

HCID 86648762cis(+/-)-5-(4-{[(4-Chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-2-methylthiophene-3-carboxylic acid

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

Methyl cis(±)-5-(4-{[(4-chloro-5-ethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-2-methylthiophene-3-carboxylate obtained in Example (188e) (16 mg) was dissolved in methanol (1 ml) and THF (1 ml). A 2 N aqueous lithium hydroxide solution (1 ml) was added, and the mixture was stirred at room temperature overnight. The organic solvent was evaporated under reduced pressure. Then, the residue was neutralized with 1 N hydrochloric acid, diluted with ethyl acetate, washed with brine, and dried over anhydrous sodium sulfate. Following concentration under reduced pressure, the residue was recrystallized from an ethyl acetate/hexane solvent to obtain the title compound as crystals.

後処理

  1. customThe organic solvent was evaporated under reduced pressure
  2. additiondiluted with ethyl acetate
  3. washwashed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentration under reduced pressure
  6. customthe residue was recrystallized from an ethyl acetate/hexane solvent

出典と根拠

ORDレコード
ord-764f5e74ba2d4c4180e267a7d0a880a5
出典データセット
uspto-grants-2013_09
特許番号
US08536197B2

反応ノート

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