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Iodoethane → 2-[9-Chloro-1-(2-methoxy-4,6-dimethylpyrimidin-5-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]butanenitrile

HRID 1399135
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인쇄 미리보기

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HRID 1399135 반응식
[CH3:1][C:2](C)([O-])C.[K+].[Cl:7][C:8]1[C:16]2[N:15]=[C:14]3[N:17]([C:21]4[C:22]([CH3:30])=[N:23][C:24]([O:28][CH3:29])=[N:25][C:26]=4[CH3:27])[CH2:18][CH2:19][CH2:20][N:13]3[C:12]=2[C:11]([CH2:31][C:32]#[N:33])=[CH:10][CH:9]=1.C(I)C>O1CCCC1.[Cl-].[NH4+]>[Cl:7][C:8]1[C:16]2[N:15]=[C:14]3[N:17]([C:21]4[C:22]([CH3:30])=[N:23][C:24]([O:28][CH3:29])=[N:25][C:26]=4[CH3:27])[CH2:18][CH2:19][CH2:20][N:13]3[C:12]=2[C:11]([CH:31]([CH2:1][CH3:2])[C:32]#[N:33])=[CH:10][CH:9]=1
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참가 물질

6

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HCID 6340IodoethaneHCID 23665647Potassium tert-butoxideHCID 57786008[9-Chloro-1-(2-methoxy-4,6-dimethylpyrimidin-5-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]acetonitrile

생성물 1

HCID 577857892-[9-Chloro-1-(2-methoxy-4,6-dimethylpyrimidin-5-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]butanenitrile수율 79.3%

시약·촉매·용매 2

HCID 8028
Tetrahydrofuran
용매
HCID 25517Ammonium Chloride용매

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온도
0 °C

실험 절차

Potassium t-butoxide (908 mg, 8.09 mmol) was added to a stirred solution of [9-chloro-1-(2-methoxy-4,6-dimethylpyrimidin-5-yl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]acetonitrile (1.41 g, 3.68 mmol) and ethyl iodide (1.43 g, 9.20 mmol) in tetrahydrofuran (18 mL) at 0° C., and the mixture was stirred at 0° C. for 50 min. The mixture was diluted with aqueous saturated ammonium chloride, and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 70-100% ethyl acetate/n-hexane gradient mixture. The filtrate was concentrated in vacuo to give the title compound as a colorless solid (1.20 g, 2.92 mmol, 79%).

후처리

  1. extractionextracted with ethyl acetate
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography on silica gel eluting with a 70-100% ethyl acetate/n-hexane gradient mixture
  7. concentrationThe filtrate was concentrated in vacuo

출처 및 근거

ORD 기록
ord-3f168f647a744798ad8d4043025da1d6
출처 데이터셋
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08901141B2

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