Diisopropylethylamine → (S)-3-cyclopentyl-N-[1-(2-methoxy-ethyl)-1H-pyrazol-3-yl]-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionamide

HRID 1261488Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1261488
[CH:1]1([CH2:6][C@H:7]([N:11]2[CH2:19][C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[C:12]2=[O:20])[C:8]([OH:10])=O)[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH3:21][O:22][CH2:23][CH2:24][N:25]1[CH:29]=[CH:28][C:27]([NH2:30])=[N:26]1.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>C(Cl)Cl>[CH:1]1([CH2:6][C@H:7]([N:11]2[CH2:19][C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[C:12]2=[O:20])[C:8]([NH:30][C:27]2[CH:28]=[CH:29][N:25]([CH2:24][CH2:23][O:22][CH3:21])[N:26]=2)=[O:10])[CH2:2][CH2:3][CH2:4][CH2:5]1

Komponenten

6

Edukt 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 451167281-(2-methoxyethyl)-1H-pyrazol-3-amineHCID 70945105(S)-3-Cyclopentyl-2-(1-oxoisoindolin-2-yl)propanoic acid

Produkt 1

HCID 70674448(S)-3-cyclopentyl-N-[1-(2-methoxy-ethyl)-1H-pyrazol-3-yl]-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionamideAusbeute 65 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a solution of (S)-3-cyclopentyl-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionic acid (100 mg, 0.37 mmol) and 1-(2-methoxy-ethyl)-1H-pyrazol-3-ylamine (prepared as in US 20080021032, Example 72, 0.054 g, 0.38 mmol) and benzotriazole-1-yl-oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate (Chemimpex, 0.19 g, 0.44 mmol) in methylene chloride (5 mL) was added N,N-diisopropylethylamine (0.19 mL, 1.1 mmol) dropwise and the resulting solution stirred at room temperature over night. The solution was diluted with methylene chloride, washed with a 1 N hydrochloric acid solution (15 mL), a saturated sodium chloride solution (20 mL) dried over magnesium sulfate. The mixture was filtered and evaporated and the resulting material purified via automated flash chromatography (Analogix, SF4-40 g column, 50-70% ethyl acetate/hexanes) to give (S)-3-cyclopentyl-N-[1-(2-methoxy-ethyl)-1H-pyrazol-3-yl]-2-(1-oxo-1,3-dihydro-isoindol-2-yl)-propionamide (94 mg, 65%) as an off white solid: [α]29D=−62.6°, (C=0.31, chloroform); HR-ES(+) m/e calcd for C22H28N4O3 [M+Na]+ 419.2053, observed 419.2055; 1H NMR (300 MHz, DMSO-d6) δ ppm 1.01-2.09 (m, 7H), 3.18 (s, 4H), 3.61 (t, J=5.28 Hz, 2H), 4.12 (t, J=5.13 Hz, 2H), 4.38-5.23 (m, 4H), 6.37 (d, J=2.11 Hz, 1H), 7.32-7.84 (m, 7H), 10.84 (s, 1H).

Aufarbeitung

  1. washwashed with a 1 N hydrochloric acid solution (15 mL)
  2. dry with materiala saturated sodium chloride solution (20 mL) dried over magnesium sulfate
  3. filtrationThe mixture was filtered
  4. customevaporated
  5. customthe resulting material purified

Quellen und Nachweise

ORD-Eintrag
ord-2fdf4dd7cc264f62a7fb3f5ab9b84c8b
Quelldatensatz
uspto-grants-2013_06
Patentnummer
US08470866B2

Notizen zur Reaktion

Wird geladen…