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Tetrahydrofuran → Methyl 4-{7-amino-2-[(2,4-dichlorophenyl)amino]-1H-benzimidazol-1-yl}-3-hydroxybutanoate

HRID 1398804
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인쇄 미리보기

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HRID 1398804 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([NH:8][C:9]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:13]=2[Cl:19])=S)[C:3]=1[NH:20][CH2:21][CH:22]([OH:28])[CH2:23][C:24]([O:26][CH3:27])=[O:25].Cl.C(N=C=NCCCN(C)C)C.O1CCCC1>C(OCC)(=O)C>[NH2:1][C:2]1[C:3]2[N:20]([CH2:21][CH:22]([OH:28])[CH2:23][C:24]([O:26][CH3:27])=[O:25])[C:9]([NH:11][C:12]3[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][C:13]=3[Cl:19])=[N:8][C:4]=2[CH:5]=[CH:6][CH:7]=1
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참가 물질

5

반응물 3

HCID 8028TetrahydrofuranHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 86632869Methyl 4-{[2-amino-6-({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)phenyl]amino}-3-hydroxybutanoate

생성물 1

HCID 68762018Methyl 4-{7-amino-2-[(2,4-dichlorophenyl)amino]-1H-benzimidazol-1-yl}-3-hydroxybutanoate수율 60.3%

시약·촉매·용매 1

HCID 8857
Ethyl Acetate
용매

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온도
50 °C

실험 절차

Under nitrogen atmosphere, a mixture of methyl 4-{[2-amino-6-({[(2,4-dichlorophenyl)amino]carbonothioyl}amino)phenyl]amino}-3-hydroxybutanoate (Reference Example 81; 1.42 g, 3.20 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.84 g, 9.60 mmol) and tetrahydrofuran (30 mL) was stirred at 50° C. for 2 hr. The reaction mixture was diluted with ethyl acetate, washed with water and brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient to give the title compound as an oil (790 mg, 1.93 mmol, 60%).

후처리

  1. washwashed with water and brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient

출처 및 근거

ORD 기록
ord-022a1ac2ecfe4562a3139d6941b312a3
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08901141B2

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