Hydrochloric Acid → HCID 50992110, compound

HRID 1405474Notes

Reaction equation

HRID 1405474 reaction equation
[C:1]1([C:7]2[C:16]([N:17]3[CH2:22][CH2:21][N:20]([C:23]4[CH:28]=[CH:27][C:26]([C:29]([F:32])([F:31])[F:30])=[CH:25][N:24]=4)[CH2:19][CH2:18]3)=[N:15][C:14]3[C:9](=[CH:10][CH:11]=[C:12]([C:33]([O:35]C)=[O:34])[CH:13]=3)[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[OH-].[Na+].Cl>CO.O>[C:1]1([C:7]2[C:16]([N:17]3[CH2:18][CH2:19][N:20]([C:23]4[CH:28]=[CH:27][C:26]([C:29]([F:31])([F:32])[F:30])=[CH:25][N:24]=4)[CH2:21][CH2:22]3)=[N:15][C:14]3[C:9](=[CH:10][CH:11]=[C:12]([C:33]([OH:35])=[O:34])[CH:13]=3)[N:8]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 67041715HCID 67041715, compound

Product 1

HCID 50992110HCID 50992110, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

Into a 50-mL round-bottom flask, was placed a solution of methyl 2-phenyl-3-(4-(5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylate (210.8 mg, 0.43 mmol, 1.00 equiv) in methanol (15 mL). This was followed by the addition of a solution of sodium hydroxide (85.5 mg, 2.14 mmol, 5.00 equiv) in water (1.5 mL), which was added dropwise with stirring. The suiting solution was stirred overnight at 50° C. in an oil bath. The pH value of the solution was adjusted to 3-4 with 1N hydrochloric acid. The mixture was concentrated under vacuum. The resulting mixture was washed with methanol. This resulted in 78 mg (38%) of 2-phenyl-3-(4-(5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylic acid as a yellow solid.

Workup

  1. customInto a 50-mL round-bottom flask, was placed
  2. additionwas added dropwise
  3. stirringThe suiting solution was stirred overnight at 50° C. in an oil bath
  4. concentrationThe mixture was concentrated under vacuum
  5. washThe resulting mixture was washed with methanol
  6. customThis resulted in 78 mg (38%) of 2-phenyl-3-(4-(5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)quinoxaline-6-carboxylic acid as a yellow solid

Sources & evidence

ORD record
ord-bf32d9c0125a4662a604b68dd12db13d
Source dataset
uspto-grants-2014_12
Patent number
US08916560B2

Reaction notes

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