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Triethylamine → tert-butyl {4-[7-benzyloxy-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]butyl}carbamate

HRID 2383112
Notes
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Reaction equation

HRID 2383112 reaction equation
[C:1]([O:5][C:6](=[O:32])[NH:7][CH2:8][CH2:9][CH2:10][CH2:11][NH:12][C:13]1[C:22]2[C:17](=[CH:18][C:19]([O:23][CH2:24][C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)=[CH:20][CH:21]=2)[N:16]=[CH:15][C:14]=1[NH2:31])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:40][O:41][CH2:42][CH2:43][C:44](Cl)=O>ClCCl>[C:1]([O:5][C:6](=[O:32])[NH:7][CH2:8][CH2:9][CH2:10][CH2:11][N:12]1[C:13]2[C:22]3[CH:21]=[CH:20][C:19]([O:23][CH2:24][C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=4)=[CH:18][C:17]=3[N:16]=[CH:15][C:14]=2[N:31]=[C:44]1[CH2:43][CH2:42][O:41][CH3:40])([CH3:4])([CH3:2])[CH3:3]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 27597283-Methoxypropanoyl chlorideHCID 68900070Tert-butyl [4-(3-amino-7-benzyloxyquinolin-4-ylamino)butyl]carbamate

Product 1

HCID 86626159tert-butyl {4-[7-benzyloxy-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]butyl}carbamateYield 93.1%

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

Under a nitrogen atmosphere, a solution of tert-butyl{4-[3-amino-7-(benzyloxy)quinolin-4-ylamino]butyl}carbamate (28.62 g, 65.5 mmol) in dichloromethane (1 L) was cooled to ˜0° C.; triethylamine (10.0 mL, 72.1 mmol) was added. Methoxypropionyl chloride (8.57 mL, 78.6 mmol) was added dropwise, and the reaction was stirred at ambient temperature for two hours. The volatiles were removed under reduced pressure, and the residue was dissolved in ethanol (840 mL). Triethylamine (33 mL) was added, and the reaction was heated at reflux overnight and allowed to cool to ambient temperature. The volatiles were removed under reduced pressure to provide 30.77 g of tert-butyl{4-[7-benzyloxy-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]butyl}carbamate as a brown oil, which was used without purification.

Workup

  1. customThe volatiles were removed under reduced pressure
  2. dissolutionthe residue was dissolved in ethanol (840 mL)
  3. additionTriethylamine (33 mL) was added
  4. temperaturethe reaction was heated
  5. temperatureat reflux overnight
  6. temperatureto cool to ambient temperature
  7. customThe volatiles were removed under reduced pressure

Sources & evidence

ORD record
ord-7574aa65e1404dd38cdf18c7be048827
Source dataset
uspto-grants-2012_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08263594B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes