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Hydrazine hydrate (1:1) → (3S,7S)-3-amino-1-benzyl-7-phenyl-1,3,4,7-tetrahydro-2H-azepin-2-one

HRID 1392090
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HRID 1392090 반응식
[CH2:1]([N:8]1[C@H:14]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[CH:13]=[CH:12][CH2:11][CH:10]([N:21]2C(=O)C3C(=CC=CC=3)C2=O)[C:9]1=[O:32])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.NN>CO.CCOCC>[NH2:21][C@@H:10]1[CH2:11][CH:12]=[CH:13][C@@H:14]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:8]([CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[C:9]1=[O:32].[NH2:21][C@H:10]1[CH2:11][CH:12]=[CH:13][C@@H:14]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)[N:8]([CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[C:9]1=[O:32]
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참가 물질

6

반응물 2

HCID 24654Hydrazine hydrate (1:1)HCID 586912052-[(7S)-1-benzyl-2-oxo-7-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-yl]-1H-isoindole-1,3(2H)-dione

생성물 2

HCID 58691160(3R,7S)-3-amino-1-benzyl-7-phenyl-1,3,4,7-tetrahydro-2H-azepin-2-oneHCID 58691185(3S,7S)-3-amino-1-benzyl-7-phenyl-1,3,4,7-tetrahydro-2H-azepin-2-one수율 72%

시약·촉매·용매 2

HCID 887
Methanol
용매
HCID 3283Diethyl Ether용매

실험 절차

To 2-[(7S)-1-benzyl-2-oxo-7-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-yl]-1H-isoindole-1,3(2H)-dione (5c) (126 mg) dissolved in MeOH (4 mL) was added hydrazine hydrate (0.036 mL) and the mixture was stirred overnight at RT. A white precipitate formed in solution. The reaction mixture was diluted with ether and the precipitate was filtered and washed with ether. The etheral filtrate was concentrated and the resulting residue dissolved in DCM. The DCM solution was washed with H2O and brine, dried (Na2SO4) and concentrated. The diastereomeric mixture was separated via preparative plate chromatography (eluent 10% MeOH/DCM) to give (3R,7S)-3-amino-1-benzyl-7-phenyl-1,3,4,7-tetrahydro-2H-azepin-2-one (5e) and (3S,7S)-3-amino-1-benzyl-7-phenyl-1,3,4,7-tetrahydro-2H-azepin-2-one (5d) (combined yield of 72%).

후처리

  1. customA white precipitate formed in solution
  2. filtrationthe precipitate was filtered
  3. washwashed with ether
  4. concentrationThe etheral filtrate was concentrated
  5. dissolutionthe resulting residue dissolved in DCM
  6. washThe DCM solution was washed with H2O and brine
  7. dry with materialdried (Na2SO4)
  8. concentrationconcentrated
  9. customThe diastereomeric mixture was separated via preparative plate chromatography (eluent 10% MeOH/DCM)

출처 및 근거

ORD 기록
ord-0b2d68dda2f5483a9c9e8ea502e9feda
출처 데이터셋
uspto-grants-2008_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07342007B2

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