Diisopropylethylamine → (S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid (1-methyl-1H-pyrazol-3-yl)-amide

HRID 19020

Reaktionsgleichung

Reaktionsgleichung von HRID 19020
Cl.OC(C)(C)[CH2:4][N:5]1[CH:9]=[CH:8][C:7]([NH:10][C:11](=[O:33])[C@@H:12]([N:17]2[CH2:21][C:20]([O:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=3[O:29][CH2:30][CH3:31])=[CH:19][C:18]2=[O:32])[CH2:13][CH:14]([CH3:16])[CH3:15])=[N:6]1.CN1C=CC(N)=N1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>CN(C)C=O.C(OCC)(=O)C>[CH3:4][N:5]1[CH:9]=[CH:8][C:7]([NH:10][C:11](=[O:33])[C@@H:12]([N:17]2[CH2:21][C:20]([O:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][C:24]=3[O:29][CH2:30][CH3:31])=[CH:19][C:18]2=[O:32])[CH2:13][CH:14]([CH3:15])[CH3:16])=[N:6]1

Komponenten

7

Edukt 4

HCID 81531DiisopropylethylamineHCID 1372541-Methyl-3-aminopyrazoleHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 67505023(S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl pentanoic acid [1-(2-hydroxy-2-methyl-propyl)-1H-pyrazol-3-yl]-amide hydrochloride

Produkt 1

HCID 44252016(S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid (1-methyl-1H-pyrazol-3-yl)-amide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
25 °C

Versuchsvorschrift

A solution of (S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid (prepared as in Example 81, 120 mg, 0.36 mmol) in N,N-dimethylformamide (4 mL) was treated with 1-methyl-1H-pyrazol-3-ylamine (42 mg, 0.43 mmol), benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate (320 mg, 0.72 mmol) and N,N-diisopropylethylamine (100 mg, 0.80 mmol). The reaction mixture was stirred for 4 h at 25° C., under nitrogen. The reaction mixture was diluted with ethyl acetate, washed with saturated ammonium chloride, water, a saturated sodium chloride solution and dried over sodium sulfate. The organic layer was concentrated, and the crude product was purified by ISCO flash chromatography (Teledyne Isco RediSep Flash Column 12 g, 20% to 70% ethyl acetate/hexanes) to afford (S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid (1-methyl-1H-pyrazol-3-yl)-amide as a waxy material. This material was dissolved in diethyl ether (4 mL) and treated with hydrogen chloride in diethyl ether (1 M, 2 mL). Solvents were evaporated and the residue was triturated with diethyl ether. The resulting mixture was filtered to give (S)-2-[4-(2-ethoxy-phenoxy)-2-oxo-2,5-dihydro-pyrrol-1-yl]-4-methyl-pentanoic acid (1-methyl-1H-pyrazol-3-yl)-amide hydrochloride (30 mg, 19%) as a brown solid: HR-ES-MS m/z calculated for C22H28N4O4 [M+Na]+ 435.2003, observed 435.2002; 1H NMR (300 MHz, DMSO-d6) δ ppm 0.87 (d, J=6.6 Hz, 3H) 0.90 (d, J=6.6 Hz, 3H) 1.24 (t, J=6.9 Hz, 3H) 1.30-1.61 (m, 2H) 1.62-1.82 (m, 1H) 3.71 (s, 3H) 3.94-4.13 (m, 3H) 4.48 (d, J=18.1 Hz, 1H) 4.72 (s, 1H) 4.86 (dd, J=10.6, 4.5 Hz, 1H) 6.37 (d, J=1.2 Hz, 1H) 6.97 (t, J=7.4 Hz, 1H) 7.17 (d, J=8.2 Hz, 1H) 7.20-7.32 (m, 2H) 7.52 (s, 1H) 10.68 (s, 1H).

Aufarbeitung

  1. washwashed with saturated ammonium chloride, water
  2. dry with materiala saturated sodium chloride solution and dried over sodium sulfate
  3. concentrationThe organic layer was concentrated
  4. customthe crude product was purified by ISCO flash chromatography (Teledyne Isco RediSep Flash Column 12 g, 20% to 70% ethyl acetate/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-de91ba3091cd4ab0a288e87520fbf906
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07741327B2

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