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Triethylamine → tert-Butyl [(1S,3R)-3-ethyl-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate

HRID 270600
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 270600
[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:13][CH2:12][C@@:11]([CH2:17][CH3:18])([C:14]([OH:16])=O)[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.Cl.[F:21][C:22]([F:36])([F:35])[C:23]1[CH:28]=[CH:27][N:26]=[C:25]([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[CH:24]=1.C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1>CN(C=O)C>[CH2:17]([C@@:11]1([C:14]([N:32]2[CH2:33][CH2:34][N:29]([C:25]3[CH:24]=[C:23]([C:22]([F:36])([F:21])[F:35])[CH:28]=[CH:27][N:26]=3)[CH2:30][CH2:31]2)=[O:16])[CH2:12][CH2:13][C@H:9]([NH:8][C:6](=[O:7])[O:5][C:1]([CH3:2])([CH3:3])[CH3:4])[CH2:10]1)[CH3:18]
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Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 68597010(1R,3S)-3-[(tert-butoxycarbonyl)amino]-1-ethylcyclopentanecarboxylic acidHCID 685975881-[4-(Trifluoromethyl)pyridin-2-yl]piperazine dihydrochloride

Produkt 1

HCID 86633371
tert-Butyl [(1S,3R)-3-ethyl-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate
Ausbeute 72,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of (1R,3S)-3-[(tert-butoxycarbonyl)amino]-1-ethylcyclopentanecarboxylic acid (0.30 g, 1.2 mmol) and 1-[4-(trifluoromethyl)pyridin-2-yl]piperazine dihydrochloride (0.39 g, 1.3 mmol) in DMF (10 mL) under N2 was added triethylamine (0.65 mL, 4.7 mmol) and O-(benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (0.663 g, 1.75 mmol). After being stirred at room temperature overnight, the reaction was quenched with saturated NaHCO3 and extracted with methylene chloride three times. The combined extracts were dried (MgSO4), filtered, concentrated and purified by flash column chromatography to yield the desired product (400 mg, 72.9%). MS calculated for C23H34F3N4O3: (M+H) 471.3; found 371.2 (M+H-Boc).

Aufarbeitung

  1. customthe reaction was quenched with saturated NaHCO3
  2. extractionextracted with methylene chloride three times
  3. dry with materialThe combined extracts were dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. custompurified by flash column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-a6aec8fb4e4a4096964e6dccea914ee8
Quelldatensatz
uspto-grants-2008_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07449467B2

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