1-Hydroxybenzotriazole → HCID 44235501, Verbindung

HRID 1093584Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1093584
[C:1]1([C:7]2[O:11][N:10]=[C:9]([C:12]([NH:14][CH2:15][C:16]([OH:18])=O)=[O:13])[CH:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CCN(C(C)C)C(C)C.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.Cl.Cl.[Br:52][C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][C:54]=1[NH:59][CH:60]1[CH2:65][CH2:64][NH:63][CH2:62][CH2:61]1>CN(C=O)C.O>[Br:52][C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][C:54]=1[NH:59][CH:60]1[CH2:65][CH2:64][N:63]([C:16](=[O:18])[CH2:15][NH:14][C:12]([C:9]2[CH:8]=[C:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)[O:11][N:10]=2)=[O:13])[CH2:62][CH2:61]1

Komponenten

8

Edukt 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 433543392-[(5-Phenyl-1,2-oxazol-3-yl)formamido]acetic acidHCID 66545672N-(2-Bromophenyl)piperidin-4-amine dihydrochloride

Produkt 1

HCID 44235501HCID 44235501, VerbindungAusbeute 22,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a stirred solution of [(5-phenyl-isoxazole-3-carbonyl)-amino]-acetic acid (0.075 g, 0.00027 mol) in DMF (2 mL), was added DIPEA (171.5 mg, 0.00133 mol), HOBt (44.8 mg, 0.00033 mol) and EDCI.HCl (0.064 g, 0.00033 mol) at ambient temperature. After 2 minutes (2-bromo-phenyl)-piperidin-4-yl-amine dihydrochloride (0.078 g, 0.00026 mol) was added and the resulting mixture was stirred overnight. The reaction mixture was then diluted with cold water and the product was extracted with ethyl acetate. The ethyl acetate layer was washed with brine solution, dried over sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by column chromatography using basic aluminium oxide (35% ethyl acetate in hexane) to afford 0.028 g (22%) of 5-phenyl-isoxazole-3-carboxylic acid {2-[4-(2-bromo-phenylamino)-piperidin-1-yl]-2-oxo-ethyl}-amide. LCMS: 483.1 (M+1)+, 97.4%, 1H NMR (DMSO-d6): δ 8.6 (t, 1H), 7.85 (m, 2H), 7.6 (m, 3H), 7.4 (m, 2H), 7.2 (t, 1H), 6.85 (d, 1H), 6.55 (t, 1H), 4.7 (d, 1H), 4.3 (d, 1H), 4.2 (d, 2H), 3.9 (d, 1H), 3.6 (m, 1H), 3.2 (m, 1H), 2.8 (m, 1H), 2.0 (t, 2H), 1.4 (m, 2H).

Aufarbeitung

  1. extractionthe product was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with brine solution
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-99d68348f5d147a3a284ab00c3febb7a
Quelldatensatz
uspto-grants-2012_03
Patentnummer
US08129376B2

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