Diisopropylamine → 4-[2-Fluoro-4-(2-pyridin-3-yl-benzoylamino)-phenyl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 2196183Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2196183
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][C:17]([NH2:20])=[CH:16][C:15]=2[F:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[N:22]1[CH:27]=[CH:26][CH:25]=[C:24]([C:28]2[CH:36]=[CH:35][CH:34]=[CH:33][C:29]=2[C:30](O)=[O:31])[CH:23]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(NC(C)C)(C)C>CN(C=O)C.CCOC(C)=O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:30](=[O:31])[C:29]3[CH:33]=[CH:34][CH:35]=[CH:36][C:28]=3[C:24]3[CH:23]=[N:22][CH:27]=[CH:26][CH:25]=3)=[CH:16][C:15]=2[F:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Komponenten

7

Edukt 4

HCID 7912DiisopropylamineHCID 27605052-(Pyridin-3-yl)benzoic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 162036301,1-Dimethylethyl 4-(4-amino-2-fluorophenyl)-1-piperazinecarboxylate

Produkt 1

HCID 669318584-[2-Fluoro-4-(2-pyridin-3-yl-benzoylamino)-phenyl]-piperazine-1-carboxylic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of 4-(4-Amino-2-fluoro-phenyl)-piperazine-1-carboxylic acid tert-butyl ester (1.00 g, 3.4 mmol) and 2-pyrid-3-yl benzoic acid (0.70 g, 3.7 mmol) in DMF (10 mL) was added HATU (1.42 g, 3.7 mmol) and diisopropylamine (0.65 mL, 3.7 mmol). After stirring at room temperature for 18 h, the reaction mixture was diluted with EtOAc (100 mL) and washed with H2O (4×50 mL). The organic extracts were combined, dried (Na2SO4), and the solvent was evaporated under reduced pressure. Chromatography of the resulting residue (SiO2: EtOAc:Hex) yielded 4-[2-fluoro-4-(2-pyridin-3-yl-benzoylamino)-phenyl]-piperazine-1-carboxylic acid tert-butyl ester which was further dissolved in MeOH (20 mL) and 4N HCl in dioxanes. After stirring for 5 h, the reaction mixture was concentrated down, neutralized with 1N NaOH, and extracted with EtOAc (3×75mL). The organic extracts were combined, dried (Na2SO4), and the solvent was evaporated under reduced pressure to yield the title compound.

Aufarbeitung

  1. washwashed with H2O (4×50 mL)
  2. dry with materialdried (Na2SO4)
  3. customthe solvent was evaporated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-7d22b536dda2404ba9bff137375abc94
Quelldatensatz
uspto-grants-2012_12
Patentnummer
US08338426B2

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