Triethylamine → 3-[9-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]pentanenitrile

HRID 1628856노트

반응식

HRID 1628856 반응식
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([CH2:28][CH3:29])[CH2:24][C:25]([NH2:27])=O)=[CH:4][CH:3]=1.C(N(CC)CC)C.FC(F)(F)C(OC(=O)C(F)(F)F)=O>O1CCCC1.C(OCC)(=O)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([CH2:28][CH3:29])[CH2:24][C:25]#[N:27])=[CH:4][CH:3]=1

참가 물질

6

반응물 3

HCID 8471TriethylamineHCID 9845Trifluoroacetic anhydrideHCID 577860343-[9-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]pentanamide

생성물 1

HCID 577861263-[9-Chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]pentanenitrile

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

To a stirred solution of 3-[9-chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]pentanamide (60.1 mg, 0.133 mmol) and triethylamine (112 μL, 0.800 mmol) in tetrahydrofuran (1.5 mL) was added trifluoroacetic anhydride (55.6 μL, 0.400 mmol) at 0° C. After 0.5 h, the reaction mixture was diluted with ethyl acetate, washed with brine, dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 0-70% ethyl acetate/n-hexane gradient mixture give the title compound as a colorless amorphous (45.1 mg, 0.104 mmol, 78%).

후처리

  1. washwashed with brine
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash column chromatography on silica gel eluting with a 0-70% ethyl acetate/n-hexane gradient mixture

출처 및 근거

ORD 기록
ord-3972d2e9447144f5b8fe38b2a8532014
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08785460B2

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