Diisopropylethylamine → N-((4-methylphenyl)methyl)-N-(1-methylpiperidin-4-yl)-2-(3-hydroxy-4-methoxyphenyl)acetamide

HRID 929738Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 929738
[CH3:1][C:2]1[CH:16]=[CH:15][C:5]([CH2:6][NH:7][CH:8]2[CH2:13][CH2:12][N:11]([CH3:14])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.[OH:17][C:18]1[CH:19]=[C:20]([CH2:26][C:27](O)=[O:28])[CH:21]=[CH:22][C:23]=1[O:24][CH3:25].C(N(C(C)C)CC)(C)C.F[P-](F)(F)(F)(F)F.Br[P+](N1CCCC1)(N1CCCC1)N1CCCC1>CN(C=O)C.O>[CH3:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][N:7]([CH:8]2[CH2:13][CH2:12][N:11]([CH3:14])[CH2:10][CH2:9]2)[C:27](=[O:28])[CH2:26][C:20]2[CH:21]=[CH:22][C:23]([O:24][CH3:25])=[C:18]([OH:17])[CH:19]=2)=[CH:15][CH:16]=1

Komponenten

7

Edukt 4

HCID 81531DiisopropylethylamineHCID 1605623-Hydroxy-4-methoxybenzeneacetic acidHCID 2733179PyBroPHCID 11993862HCID 11993862, Verbindung

Produkt 1

HCID 22643460N-((4-methylphenyl)methyl)-N-(1-methylpiperidin-4-yl)-2-(3-hydroxy-4-methoxyphenyl)acetamideAusbeute 280 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

N-((4-methylphenyl)methyl)-4-amino-1-methylpiperidine (50ELH25) (105 mg, 0.48 mmol) and 3-hydroxy-4-methoxyphenylacetic acid (88 mg, 0.48 mmol) were dissolved in DMF (10 ml). Diisopropylethylamine (DIEA, 250 μL, 1.44 mmol) was added followed by bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBrOP, 336 mg, 0.72 mmol), and the mixture was stirred at r.t for 1 h. Water (50 mL) was added, and the reaction mixture was extracted with EtOAc (2×50 mL). Drying by Na2SO4 and concentration yielded 514 mg crude material, which was purified by flash chromatography (0-30% MeOH in CH2Cl2). This gave 105 mg (57%) of the title compound as a white solid. Rf=0.20 (10% MeOH in CH2Cl2). HPLC-MS (method A) showed MH+=383. UV/MS (%)=100/92. 1H-NMR (400 MHz, CD3OD, Rotamers 52:48): δ 7.18-6.58 (m, 7H), 4.53 (s, 2H), 4.31 and 3.97 (2m, 1H), 3.82 and 3.81 (2s, 3H), 3.80 and 3.55 (2s, 2H), 3.04 and 2.85 (2m, 2H), 2.41 and 2.32 (2s, 3H), 2.35 and 2.12 (2m, 2H), 2.29 and 2.27 (2s, 3H), 1.83 and 1.74 (2m, 2H), 1.72 and 1.33 (2m, 2H)

Aufarbeitung

  1. extractionthe reaction mixture was extracted with EtOAc (2×50 mL)
  2. dry with materialDrying by Na2SO4 and concentration

Quellen und Nachweise

ORD-Eintrag
ord-9cfd19a5e5f5400eba0bd26a0c59c4c0
Quelldatensatz
uspto-grants-2016_03
Patentnummer
US09296694B2

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