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Diisopropylethylamine → tert-butyl 4-methyl-3-((5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methylcarbamoyl)piperidine-1-carboxylate

HRID 1854411
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HRID 1854411 반응식
Cl.[S:2]([N:12]1[C:16]2=[N:17][CH:18]=[C:19]([CH2:21][NH2:22])[N:20]=[C:15]2[CH:14]=[CH:13]1)([C:5]1[CH:11]=[CH:10][C:8]([CH3:9])=[CH:7][CH:6]=1)(=[O:4])=[O:3].[C:23]([O:27][C:28]([N:30]1[CH2:35][CH2:34][CH:33]([CH3:36])[CH:32]([C:37](O)=[O:38])[CH2:31]1)=[O:29])([CH3:26])([CH3:25])[CH3:24].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl>[CH3:36][CH:33]1[CH2:34][CH2:35][N:30]([C:28]([O:27][C:23]([CH3:25])([CH3:24])[CH3:26])=[O:29])[CH2:31][CH:32]1[C:37](=[O:38])[NH:22][CH2:21][C:19]1[N:20]=[C:15]2[CH:14]=[CH:13][N:12]([S:2]([C:5]3[CH:6]=[CH:7][C:8]([CH3:9])=[CH:10][CH:11]=3)(=[O:3])=[O:4])[C:16]2=[N:17][CH:18]=1
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참가 물질

6

반응물 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 450431571-(tert-Butoxycarbonyl)-4-methylpiperidine-3-carboxylic acidHCID 67068339(5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methanamine hydrochloride

생성물 1

HCID 58009799
tert-butyl 4-methyl-3-((5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methylcarbamoyl)piperidine-1-carboxylate
수율 95.9%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a slurry of (5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methanamine hydrochloride (29.6 g, 87.0 mmol, Step F), 1-(tert-butoxycarbonyl)-4-methylpiperidine-3-carboxylic acid (21.2 g, 87.0 mmol, Step G) and HATU (33.2 g, 87.0 mmol) in DCM (400 mL) was added DIEA (46.0 mL, 263 mmol). After stirring for about 18 h at ambient temperature, the reaction mixture was washed with aqueous saturated NaHCO3 (400 mL). The organic layer was separated, dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (330 g column) eluting with a gradient of 50-100% EtOAc in heptane to give tert-butyl 4-methyl-3-((5-tosyl-5H-pyrrolo[2,3-b]pyrazin-2-yl)methylcarbamoyl)piperidine-1-carboxylate (44 g, 95%) as a tan foam: LC/MS (Table 2, Method a) Rt=2.38 min; MS m/z: 528 (M+H)+.

후처리

  1. washthe reaction mixture was washed with aqueous saturated NaHCO3 (400 mL)
  2. customThe organic layer was separated
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel chromatography (330 g column)
  7. washeluting with a gradient of 50-100% EtOAc in heptane

출처 및 근거

ORD 기록
ord-edc0626f79a242f7bb5d1483e4f41bb4
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08962629B2

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