Hydrochloric Acid → [1-(2,4-Dichlorophenyl)-5-(diethylamino)-2,3-dihydro-1H-imidazo[1,2-a]benzimidazol-2-yl]acetic acid

HRID 1399014ノート

反応式

HRID 1399014 の反応式
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]2=[N:14][C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([N:21]([CH2:24][CH3:25])[CH2:22][CH3:23])[C:16]=3[N:12]2[CH2:11][CH:10]1[CH2:26][C:27]([O:29]C)=[O:28].[OH-].[Na+].Cl>O1CCCC1.CO>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[N:9]1[C:13]2=[N:14][C:15]3[CH:20]=[CH:19][CH:18]=[C:17]([N:21]([CH2:24][CH3:25])[CH2:22][CH3:23])[C:16]=3[N:12]2[CH2:11][CH:10]1[CH2:26][C:27]([OH:29])=[O:28]

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 57785854Methyl [1-(2,4-dichlorophenyl)-5-(diethylamino)-2,3-dihydro-1H-imidazo[1,2-a]benzimidazol-2-yl]acetate

生成物 1

HCID 57785830[1-(2,4-Dichlorophenyl)-5-(diethylamino)-2,3-dihydro-1H-imidazo[1,2-a]benzimidazol-2-yl]acetic acid収率 65.3%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of methyl [1-(2,4-dichlorophenyl)-5-(diethylamino)-2,3-dihydro-1H-imidazo[1,2-a]benzimidazol-2-yl]acetate (Example 72; 50.0 mg, 0.112 mmol) in a mixture of tetrahydrofuran (1 mL) and methanol (0.5 mL) was added 1N sodium hydroxide solution (0.224 mL, 0.224 mmol) at room temperature. After the resultant mixture was stirred at room temperature for 1 hr, the mixture was neutralized with 1N hydrochloric acid and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was washed with ethyl acetate to give the title compound as a solid (31.7 mg, 0.0731 mmol, 65%). Analytically pure material was obtained by recrystallization from ethanol/diisopropyl ether.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. washThe residue was washed with ethyl acetate

出典と根拠

ORDレコード
ord-d6c0804c423e4a7fa03796cf11d9cfac
出典データセット
uspto-grants-2014_12
特許番号
US08901141B2

反応ノート

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