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

HRID 8366

Reaction equation

HRID 8366 reaction equation
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]([F: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]([F:22])[CH:7]=2)[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]1

Participants

3

Reactant 2

HCID 8082PiperidineHCID 220156172-(4'-Chloropropoxy-2'fluorophenyl)-7-methylimidazo[1,2-a]pyridine

Product 1

HCID 220156412-[2-Fluoro-4-(3-piperidin-1-yl-propoxy)-phenyl]-7-methyl-imidazo[1,2-a]pyridine

Procedure

The product of Step C (118 mg) and piperidine (1.5 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 and evaporated. The residue was purified via silica gel chromatography (dichloromethane/methanol) to give the title compound (130 mg). 1H-NMR (CD3OD) δ 8.22 (d, J=8.0 Hz, 1H), 7.98 (m, 2H), 7.27 (s, 1H), 6.76 (m, 3H), 4.00 (t, J=6.0 Hz, 2H), 2.48 (m, 6H), 2.38 (s, 3H), 1.96 (m, 2H), 1.61 (m, 4H), 1.47 (m, 2H)

Workup

  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. customevaporated
  4. customThe residue was purified via silica gel chromatography (dichloromethane/methanol)

Sources & evidence

ORD record
ord-38df20f512e84f7faadc91d1b13aecdb
Source dataset
uspto-grants-2006_08
Patent number
US07087757B2

Linked notes

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