Piperidine → 7-Methyl-2-[2-methyl-4-(3-piperidin-1-yl-propoxy)-phenyl]-imidazo[1,2-a]pyridine

HRID 1824537

Reaktionsgleichung

Reaktionsgleichung von HRID 1824537
Cl[CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:11]=[CH:10][C:9]([C:12]2[N:13]=[C:14]3[CH:19]=[C:18]([CH3:20])[CH:17]=[CH:16][N:15]3[CH:21]=2)=[C:8]([CH3:22])[CH:7]=1.[NH:23]1[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1>>[N:23]1([CH2:2][CH2:3][CH2:4][O:5][C:6]2[CH:11]=[CH:10][C:9]([C:12]3[N:13]=[C:14]4[CH:19]=[C:18]([CH3:20])[CH:17]=[CH:16][N:15]4[CH:21]=3)=[C:8]([CH3:22])[CH:7]=2)[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1

Komponenten

3

Edukt 2

HCID 8082PiperidineHCID 220156392-(4'-Chloropropoxy-2'-methylphenyl)-7-methylimidazo[1,2-a]pyridine

Produkt 1

HCID 102700937-Methyl-2-[2-methyl-4-(3-piperidin-1-yl-propoxy)-phenyl]-imidazo[1,2-a]pyridine

Versuchsvorschrift

The product of Step C (200 mg) and piperidine (2.0 mL) were heated at 100° C. for 2.5 hours. The reaction was cooled to ambient temperature and partitioned between ethyl acetate (10 mL) and saturated sodium bicarbonate solution (10 mL). The aqueous portion was extracted with additional ethyl acetate (10 mL) and the organic portions combined, washed with brine, and evaporated. The residue was purified via silica gel chromatography (dichloromethane/methanol) to give the title compound (110 mg). 1H-NMR (CD3OD) δ 8.28 (d, J=7.0 Hz, 1H), 7.78 (s, 1H), 7.61 (d, J=8.0 Hz, 1H), 7.31 (s, 1H), 6.84 (s, 1H), 6.79 (m, 2H), 4.04 (t, J=6.0 Hz, 2H), 2.50 (m, 12H), 1.99 (m, 2H), 1.64 (m, 4H), 1.51 (m, 2H).

Aufarbeitung

  1. custompartitioned between ethyl acetate (10 mL) and saturated sodium bicarbonate solution (10 mL)
  2. extractionThe aqueous portion was extracted with additional ethyl acetate (10 mL)
  3. washwashed with brine
  4. customevaporated
  5. customThe residue was purified via silica gel chromatography (dichloromethane/methanol)

Quellen und Nachweise

ORD-Eintrag
ord-dadecefc69234eab8816d26be068440c
Quelldatensatz
uspto-grants-2006_05
Patentnummer
US07041828B2

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