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Hydrochloric Acid → 2-[4-(4-Acetyl-3-hydroxy-2-propylphenylthio)butylthio]benzimidazole-5-carboxylic acid

HRID 2165941
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HRID 2165941 반응식
[C:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10][CH2:11][CH2:12][CH2:13][CH2:14][S:15][C:16]2[NH:17][C:18]3[CH:24]=[C:23]([C:25]([O:27]CC)=[O:26])[CH:22]=[CH:21][C:19]=3[N:20]=2)=[C:6]([CH2:30][CH2:31][CH3:32])[C:5]=1[OH:33])(=[O:3])[CH3:2].O1CCOCC1.[OH-].[Na+].Cl>O>[C:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10][CH2:11][CH2:12][CH2:13][CH2:14][S:15][C:16]2[NH:17][C:18]3[CH:24]=[C:23]([C:25]([OH:27])=[O:26])[CH:22]=[CH:21][C:19]=3[N:20]=2)=[C:6]([CH2:30][CH2:31][CH3:32])[C:5]=1[OH:33])(=[O:3])[CH3:2]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 312751,4-DioxaneHCID 23042700Ethyl 2-[4-(4-acetyl-3-hydroxy-2-propylphenylthio)butylthio]benzimidazole-5-carboxylate

생성물 1

HCID 146280732-[4-(4-Acetyl-3-hydroxy-2-propylphenylthio)butylthio]benzimidazole-5-carboxylic acid수율 64.5%

시약·촉매·용매 1

HCID 962
Water
용매

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온도
60 °C

실험 절차

A mixture of ethyl 2-[4-(4-acetyl-3-hydroxy-2-propylphenylthio)butylthio]benzimidazole-5-carboxylate (2.50 g), 1,4-dioxane (30 ml) and sodium hydroxide (1.03 g) in water (30 ml) was stirred at 60 ° C. for 2 hours. This mixture was poured into ice-water, made acidic with concentrated hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with water, dried over anhydrous sodium sulfate and evaporated. The resulting residue was purified by silica gel column chromatography, eluting with dichloromethane-methanol (10:1), to give the title compound (1.52 g, 64.5 %) as yellow crystals, mp 90-95° C.

후처리

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialdried over anhydrous sodium sulfate
  4. customevaporated
  5. customThe resulting residue was purified by silica gel column chromatography
  6. washeluting with dichloromethane-methanol (10:1)

출처 및 근거

ORD 기록
ord-9ee0480b8dd148b2a130feb0005107be
출처 데이터셋
uspto-grants-1990_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04942245

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