2-Phenoxybenzoyl chloride → N1-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-2-phenoxybenzamide

HRID 353834Notes

Reaction equation

HRID 353834 reaction equation
[NH2:1][CH2:2][CH2:3][CH2:4][CH2:5][N:6]1[C:18]2[C:17]3[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=3[N:11]=[C:10]([NH2:19])[C:9]=2[N:8]=[CH:7]1.[O:20]([C:27]1[CH:35]=[CH:34][CH:33]=[CH:32][C:28]=1[C:29](Cl)=[O:30])[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1>N1C=CC=CC=1>[NH2:19][C:10]1[C:9]2[N:8]=[CH:7][N:6]([CH2:5][CH2:4][CH2:3][CH2:2][NH:1][C:29](=[O:30])[C:28]3[CH:32]=[CH:33][CH:34]=[CH:35][C:27]=3[O:20][C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[C:18]=2[C:17]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[N:11]=1

Participants

4

Reactant 2

HCID 110753032-Phenoxybenzoyl chlorideHCID 154537751-(4-aminobutyl)-1H-imidazo[4,5-c]quinolin-4-amine

Product 1

HCID 12144520N1-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-2-phenoxybenzamideYield 56.5%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent2×

Procedure

Under a nitrogen atmosphere, a mixture of 1-(4-aminobutyl)-1H-imidazo[4,5-c]quinolin-4-amine (0.125 g, 0.49 mmol) and anhydrous pyridine (40 mL) was warmed with a heat gun to dissolve the solid. The resulting solution was allowed to cool to ambient temperature. A solution of 2-phenoxybenzoyl chloride (0.11 g, 0.47 mmol) in pyridine (5 mL) was added. The reaction mixture was maintained at ambient temperature for 18 hours and then concentrated under vacuum. The resulting solid residue was purified by flash chromatography (silica gel eluting with 9:1 dichloromethane:methanol) to provide 0.12 g of N1-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-2-phenoxybenzamide as a white solid, m.p. 93-94° C. 1H NMR (500 MHz, DMSO-d6) δ 8.23 (t, J=6.0 Hz, 1H), 8.14 (s, 1H), 8.00 (d, J=8.0 Hz, 1H), 7.62 (d, J=8.0 Hz, 1H), 7.54 (dd, J=8.0, 1.5 Hz, 1H), 7.43 (dt, J=8.0, 1.5 Hz, 1H), 7.42 (dt, J=8.0, 1.5 Hz, 1H), 7.30 (t, J=8.0 Hz, 2H), 7.22 (t, J=8.0 Hz, 1H), 7.18 (t, J=8.0 Hz, 1H), 7.07 (t, J=8.0 Hz, 1H), 6.89 (m, 3H), 6.59 (broad s, 2H), 4.55 (t, J=7.0 Hz, 2H), 3.23 (q, J=6.0 Hz, 2H), 1.81 (quintet, J=7.0 Hz, 2H), 1.47 (quintet, J=7.0 Hz, 2H); MS (EI) m/e 451.2004 (451.2008 calcd for C27H25N5O2).

Workup

  1. temperaturewas warmed with a heat gun
  2. dissolutionto dissolve the solid
  3. temperatureThe reaction mixture was maintained at ambient temperature for 18 hours
  4. concentrationconcentrated under vacuum
  5. customThe resulting solid residue was purified by flash chromatography (silica gel eluting with 9:1 dichloromethane:methanol)

Sources & evidence

ORD record
ord-bf94695b14ef43d88b7b7412c45ab425
Source dataset
uspto-grants-2004_06
Patent number
US06756382B2

Reaction notes

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