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Sodium Iodide → 4-{4-[bis(tert-butoxycarbonyl)amino]-2-propyl-2H-pyrazolo[3,4-c]quinolin-1-yl}butyl acetate

HRID 1360479
Notes
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Reaction equation

HRID 1360479 reaction equation
[C:1]([O-:4])(=[O:3])[CH3:2].[K+].[I-].[Na+].Cl[CH2:9][CH2:10][CH2:11][CH2:12][C:13]1[N:14]([CH2:41][CH2:42][CH3:43])[N:15]=[C:16]2[C:25]=1[C:24]1[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1[N:18]=[C:17]2[N:26]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28]>CN(C=O)C>[C:1]([O:4][CH2:9][CH2:10][CH2:11][CH2:12][C:13]1[N:14]([CH2:41][CH2:42][CH3:43])[N:15]=[C:16]2[C:25]=1[C:24]1[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1[N:18]=[C:17]2[N:26]([C:34]([O:36][C:37]([CH3:40])([CH3:39])[CH3:38])=[O:35])[C:27]([O:29][C:30]([CH3:31])([CH3:32])[CH3:33])=[O:28])(=[O:3])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 5238Sodium IodideHCID 517044Potassium AcetateHCID 66958751di(tert-butyl) 1-(4-chlorobutyl)-2-propyl-2H-pyrazolo[3,4-c]quinolin-4-ylimidodicarbonate

Product 1

HCID 669589344-{4-[bis(tert-butoxycarbonyl)amino]-2-propyl-2H-pyrazolo[3,4-c]quinolin-1-yl}butyl acetateYield 77.1%

Reagents, catalysts & solvents 1

HCID 6228
Dimethylformamide
Solvent

Conditions

Temperature
90 °C

Procedure

Potassium acetate (0.83 g, 8.432 mmol) and sodium iodide (16 g, 1.05 mmol) was added to a solution of di(tert-butyl) 1-(4-chlorobutyl)-2-propyl-2H-pyrazolo[3,4-c]quinolin-4-ylimidodicarbonate (2.18 g, 4.22 mmol) in DMF (15 mL). The reaction mixture was heated at 90° C. under a nitrogen atmosphere for 4.5 hours. The reaction was allowed to cool to ambient temperature and the volatiles were removed under reduced pressure. The resulting oil was partitioned between ethyl acetate and water. The organic layer was isolated and washed with water (2×25 mL) and brine (3×20 mL), dried over magnesium sulfate, filtered, and concentrated under reduced pressure to yield an oil that was dried under vacuum to provide 1.76 g of 4-{4-[bis(tert-butoxycarbonyl)amino]-2-propyl-2H-pyrazolo[3,4-c]quinolin-1-yl}butyl acetate.

Workup

  1. temperatureto cool to ambient temperature
  2. customthe volatiles were removed under reduced pressure
  3. customThe resulting oil was partitioned between ethyl acetate and water
  4. customThe organic layer was isolated
  5. washwashed with water (2×25 mL) and brine (3×20 mL)
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customto yield an oil that
  10. customwas dried under vacuum

Sources & evidence

ORD record
ord-cce20e2abc4646daa92354ee8d603b2f
Source dataset
uspto-grants-2011_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07879849B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes