Cesium carbonate → 2-(3-isopropyl-2-oxo-2,3-dihydro-benzoimidazol-1-ylmethyl)-1-(3-methyl-butyl)-1H-benzoimidazole-5-carbonitrile

HRID 896299노트

반응식

HRID 896299 반응식
[CH:1]([N:4]1[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[NH:6][C:5]1=[O:13])([CH3:3])[CH3:2].C([O-])([O-])=O.[Cs+].[Cs+].Cl[CH2:21][C:22]1[N:26]([CH2:27][CH2:28][CH:29]([CH3:31])[CH3:30])[C:25]2[CH:32]=[CH:33][C:34]([C:36]#[N:37])=[CH:35][C:24]=2[N:23]=1>CN(C=O)C.CCOC(C)=O>[CH:1]([N:4]1[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[N:6]([CH2:21][C:22]2[N:26]([CH2:27][CH2:28][CH:29]([CH3:31])[CH3:30])[C:25]3[CH:32]=[CH:33][C:34]([C:36]#[N:37])=[CH:35][C:24]=3[N:23]=2)[C:5]1=[O:13])([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 16535801-(Propan-2-yl)-1,3-dihydro-2H-benzimidazol-2-oneHCID 223493092-(Chloromethyl)-1-isopentyl-benzimidazole-5-carbonitrile

생성물 1

HCID 223493242-(3-isopropyl-2-oxo-2,3-dihydro-benzoimidazol-1-ylmethyl)-1-(3-methyl-butyl)-1H-benzoimidazole-5-carbonitrile수율 95%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

A suspension of 1-isopropyl-1,3-dihydro-benzoimidazol-2-one (0.79 g, 4.5 mmol) and Cs2CO3 (4.40 g, 13.5 mmol) in DMF (50 mL) was stirred for 30 minutes then 2-chloromethyl-1-(3-methyl-butyl)-1H-benzoimidazole-5-carbonitrile (1.34 g, 4.5 mmol) was added and the mixture stirred for 5 h at ambient temperature. The reaction mixture was diluted with EtOAc (50 mL) and filtered. The filtrate was evaporated to dryness and the residue taken up in EtOAc (100 mL), washed with water and brine. The organic layer was dried over MgSO4 and evaporated. The residue was purified by flash chromatography (gradient, hexanes:EtOAc 3:1 to 1:1) to give 1.71 g (95%) of 2-(3-isopropyl-2-oxo-2,3-dihydro-benzoimidazol-1-ylmethyl)-1-(3-methyl-butyl)-1H-benzoimidazole-5-carbonitrile as a white solid.

후처리

  1. stirringthe mixture stirred for 5 h at ambient temperature
  2. filtrationfiltered
  3. customThe filtrate was evaporated to dryness
  4. washwashed with water and brine
  5. dry with materialThe organic layer was dried over MgSO4
  6. customevaporated
  7. customThe residue was purified by flash chromatography (gradient, hexanes:EtOAc 3:1 to 1:1)

출처 및 근거

ORD 기록
ord-2b292b75ad924b399e6d7d4241c56b9a
출처 데이터셋
uspto-grants-2005_07
특허 번호
US06919331B2

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