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Sodium Hydroxide → Fexofenadine

HRID 413542
ノート
印刷プレビュー

反応式

HRID 413542 の反応式
[BH4-].[Na+].[OH-].[Na+].Cl.[OH:6][C:7]([C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)[CH:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][C:17]([C:19]2[CH:24]=[CH:23][C:22]([C:25]([CH3:30])([CH3:29])[C:26]([OH:28])=[O:27])=[CH:21][CH:20]=2)=[O:18])[CH2:10][CH2:9]1>O.C(O)C>[OH:6][C:7]([C:37]1[CH:38]=[CH:39][CH:40]=[CH:41][CH:42]=1)([C:31]1[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=1)[CH:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][CH:17]([C:19]2[CH:24]=[CH:23][C:22]([C:25]([CH3:30])([CH3:29])[C:26]([OH:28])=[O:27])=[CH:21][CH:20]=2)[OH:18])[CH2:10][CH2:9]1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 14798Sodium HydroxideHCID 4311764Sodium borohydrideHCID 10230449Fexofenadinone Hydrochloride

生成物 1

HCID 3348Fexofenadine

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

Add sodium borohydride (0.105 g, 2.77 mmol) to a solution of sodium hydroxide (0.053 g, 1.33 mmol) in deionized water (2 mL) and add, by dropwise addition, to a solution of 4-[4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]-α,α-dimethylbenzeneacetic acid hydrochloride (0.70 g, 1.31 mmol) in ethanol (30 mL). Stir at room temperature for 3.5 hours at pH 7-8. Evaporate the solvent in vacuo and stir the residue with methylene chloride (15 mL) and deionized water (15 mL). Dry (MgSO4), acidify to pH 3 with gaseous hydrogen chloride and evaporate the solvent. Add ether with stirring, filter the white solid and wash with additional ether. Dry to give the title compound.

後処理

  1. customEvaporate the solvent in vacuo
  2. stirringstir the residue with methylene chloride (15 mL) and deionized water (15 mL)
  3. dry with materialDry (MgSO4)
  4. customevaporate the solvent
  5. stirringAdd ether with stirring
  6. filtrationfilter the white solid
  7. washwash with additional ether
  8. customDry

出典と根拠

ORDレコード
ord-66d04a023eb74722b840ae08043de9c0
出典データセット
uspto-grants-2003_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06566526B2

反応ノート

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