Hydrochloric Acid → 3-(7-Ethyl-4-oxo-4,5-dihydroimidazo[1,5-a]quinoxalin-1-yl)-propanoic acid

HRID 576834Notes

Reaction equation

HRID 576834 reaction equation
[CH2:1]([C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]1[C:13]([CH2:16][CH2:17][C:18]([O:20]CC)=[O:19])=[N:14][CH:15]=[C:8]1[C:7](=[O:23])[NH:6]2)[CH3:2].Cl>C(O)C>[CH2:1]([C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][CH:12]=1)[N:9]1[C:13]([CH2:16][CH2:17][C:18]([OH:20])=[O:19])=[N:14][CH:15]=[C:8]1[C:7](=[O:23])[NH:6]2)[CH3:2]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 59198574Ethyl 3-(7-ethyl-4-oxo-4,5-dihydroimidazo[1,5-a]quinoxalin-1-yl)propanoate

Product 1

HCID 591986403-(7-Ethyl-4-oxo-4,5-dihydroimidazo[1,5-a]quinoxalin-1-yl)-propanoic acid

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a mixture of ethyl 3-(7-ethyl-4-oxo-4,5-dihydroimidazo-[1,5-a]-quinoxalin-1-yl)propanoate as synthesized in above Example 184, 50 mg and ethanol 3 mL, 1N sodium hydroxide solution 1.2 mL was added and heated under reflux for 2 hours. The reaction liquid was allowed to cool off, and to which 1N hydrochloric acid 1.2 mL was added. The precipitated crystals were recovered by filtration, washed with water and dried in flowing air to provide 37 mg of the title compound.

Workup

  1. additionwas added
  2. temperatureheated
  3. temperatureunder reflux for 2 hours
  4. customThe reaction liquid
  5. temperatureto cool off
  6. filtrationThe precipitated crystals were recovered by filtration
  7. washwashed with water
  8. customdried

Sources & evidence

ORD record
ord-9d4f82fb9d7349b681428fc39976b977
Source dataset
uspto-grants-2015_05
Patent number
US09040536B2

Reaction notes

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