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Diisopropylethylamine → Tert-butyl 3-((7-chloropyrido[3,4-b]pyrazin-5-ylamino)methyl)-3-fluoropiperidine-1-carboxylate

HRID 57584
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HRID 57584 반응식
[NH2:1][CH2:2][C:3]1([F:16])[CH2:8][CH2:7][CH2:6][N:5]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[CH2:4]1.CCN(C(C)C)C(C)C.Cl[C:27]1[C:32]2=[N:33][CH:34]=[CH:35][N:36]=[C:31]2[CH:30]=[C:29]([Cl:37])[N:28]=1>C1COCC1>[Cl:37][C:29]1[N:28]=[C:27]([NH:1][CH2:2][C:3]2([F:16])[CH2:8][CH2:7][CH2:6][N:5]([C:9]([O:11][C:12]([CH3:13])([CH3:15])[CH3:14])=[O:10])[CH2:4]2)[C:32]2=[N:33][CH:34]=[CH:35][N:36]=[C:31]2[CH:30]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 56973580tert-Butyl 3-(aminomethyl)-3-fluoropiperidine-1-carboxylateHCID 717428275,7-Dichloropyrido(3,4-b)pyrazine

생성물 1

HCID 86717373Tert-butyl 3-((7-chloropyrido[3,4-b]pyrazin-5-ylamino)methyl)-3-fluoropiperidine-1-carboxylate수율 26.8%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran
용매

실험 절차

tert-butyl 3-(aminomethyl)-3-fluoropiperidine-1-carboxylate (3.86 g, 16.6 mmol) and DIPEA (3.22 g, 24.9 mmol) were added to a solution of 5,7-dichloropyrido[3,4-b]pyrazine (3.32 g, 16.6 mmol) in THF (60 mL) and the mixture was refluxed overnight. The volatile components were evaporated and the residue was extracted with ethyl acetate. Ethyl acetate was washed with brine and dried. The solvent was removed in vacuo The crude residue was purified by silica-gel chromatography eluting with Hexane-50% EtOAc/Hexane (gradient) then C18 column to afford the subtitled compound as pale yellow solid 1.76 g. MS (m/z): 396 (M+H)+

후처리

  1. temperaturethe mixture was refluxed overnight
  2. customThe volatile components were evaporated
  3. extractionthe residue was extracted with ethyl acetate
  4. washEthyl acetate was washed with brine
  5. customdried
  6. customThe solvent was removed in vacuo The crude residue
  7. customwas purified by silica-gel chromatography
  8. washeluting with Hexane-50% EtOAc/Hexane (gradient)

출처 및 근거

ORD 기록
ord-93a4037ccaae4252af2679660a6608b3
출처 데이터셋
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09434726B2

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