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Sodium Carbonate → tert-butyl 2-[(2-ethoxymethyl-5-oxido-1-propyl-1H-imidazo[4,5-c]quinolin-8-yl)oxy]ethylcarbamate

HRID 2203492
Notes
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Reaction equation

HRID 2203492 reaction equation
C1C=C(Cl)C=C(C(OO)=[O:9])C=1.[C:12]([O:16][C:17](=[O:42])[NH:18][CH2:19][CH2:20][O:21][C:22]1[CH:31]=[CH:30][C:29]2[N:28]=[CH:27][C:26]3[N:32]=[C:33]([CH2:38][O:39][CH2:40][CH3:41])[N:34]([CH2:35][CH2:36][CH3:37])[C:25]=3[C:24]=2[CH:23]=1)([CH3:15])([CH3:14])[CH3:13].C(=O)([O-])[O-].[Na+].[Na+]>C(Cl)(Cl)Cl>[CH2:40]([O:39][CH2:38][C:33]1[N:34]([CH2:35][CH2:36][CH3:37])[C:25]2[C:24]3[CH:23]=[C:22]([O:21][CH2:20][CH2:19][NH:18][C:17](=[O:42])[O:16][C:12]([CH3:13])([CH3:14])[CH3:15])[CH:31]=[CH:30][C:29]=3[N+:28]([O-:9])=[CH:27][C:26]=2[N:32]=1)[CH3:41]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 70297m-Chloroperbenzoic acidHCID 131731977tert-butyl[2-(2-ethoxymethyl-1-propyl-1H-imidazo[4,5-c]quinolin-8-yloxy)ethyl]carbamate

Product 1

HCID 68973926tert-butyl 2-[(2-ethoxymethyl-5-oxido-1-propyl-1H-imidazo[4,5-c]quinolin-8-yl)oxy]ethylcarbamateYield 64.9%

Reagents, catalysts & solvents 1

HCID 6212
Chloroform
Solvent
2×

Procedure

mCPBA (60% pure, 12.76 g, 44.36 mmol) was added in one portion to a solution of tert-butyl[2-(2-ethoxymethyl-1-propyl-1H-imidazo[4,5-c]quinolin-8-yloxy)ethyl]carbamate (14.4 g, 33.6 mmol) and chloroform (150 mL); the reaction mixture was stirred for 30 minutes. The reaction mixture was then poured into saturated aqueous sodium carbonate (100 mL) and stirred for 30 minutes. Chloroform (250 mL) was added, and the organic fraction was washed sequentially with 5% aqueous sodium carbonate, water, and brine; dried over magnesium sulfate; filtered; and concentrated under reduced pressure. The resulting red oil was triturated with ethyl acetate to provide 9.7 g of tert-butyl 2-[(2-ethoxymethyl-5-oxido-1-propyl-1H-imidazo[4,5-c]quinolin-8-yl)oxy]ethylcarbamate as a peach-colored powder.

Workup

  1. stirringstirred for 30 minutes
  2. washthe organic fraction was washed sequentially with 5% aqueous sodium carbonate, water, and brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationand concentrated under reduced pressure
  6. customThe resulting red oil was triturated with ethyl acetate

Sources & evidence

ORD record
ord-b2f6e5290f9b44c2a0e98929e8b2f5de
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09365567B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes