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Phenylacetic Acid → Tert-butyl (3s)-3-methyl-4-(phenylacetyl)piperazine-1-carboxylate

HRID 38269
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HRID 38269 반응식
[CH3:1][C@@H:2]1[NH:7][CH2:6][CH2:5][N:4]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:3]1.[C:15]1([CH2:21][C:22](O)=[O:23])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C.CCOC(C)=O>[CH3:1][C@@H:2]1[N:7]([C:22](=[O:23])[CH2:21][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH2:6][CH2:5][N:4]([C:8]([O:10][C:11]([CH3:13])([CH3:12])[CH3:14])=[O:9])[CH2:3]1
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참가 물질

7

반응물 4

HCID 999Phenylacetic AcidHCID 81531DiisopropylethylamineHCID 7023035(S)-1-Boc-3-methylpiperazineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)

생성물 1

HCID 67131985Tert-butyl (3s)-3-methyl-4-(phenylacetyl)piperazine-1-carboxylate수율 83%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

3-Methyl-(3S)-1-piperazinecarboxylic acid, 1,1-dimethylethyl ester (250 mg), benzeneacetic acid (210 mg) and Hunigs base (450 □l) were dissolved in DMF (10 ml) and HATU (720 mg) added portionwise over 2 min. The reaction mixture was stirred for 3 h, diluted with EtOAc, washed with water and brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by chromatography on silica with 25% EtOAc/isohexane as eluent to give the sub-title compound (330 mg)

후처리

  1. washwashed with water and brine
  2. dry with materialdried (MgSO4)
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by chromatography on silica with 25% EtOAc/isohexane as eluent

출처 및 근거

ORD 기록
ord-1732818959bb4e6aa79ac33906d948fb
출처 데이터셋
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08524715B2

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