Sodium Hydroxide → HCID 67980245, compound

HRID 716987Notes

Reaction equation

HRID 716987 reaction equation
[CH3:1][C@@H:2]1[CH2:6][CH2:5][CH2:4][N:3]1[C:7]1[C:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[N:9][C:10]2[C:15]([N:16]=1)=[CH:14][C:13]([C:17]([O:19]C)=[O:18])=[CH:12][CH:11]=2.[OH-].[Na+]>CO.O>[CH3:1][C@@H:2]1[CH2:6][CH2:5][CH2:4][N:3]1[C:7]1[C:8]([C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[N:9][C:10]2[C:15]([N:16]=1)=[CH:14][C:13]([C:17]([OH:19])=[O:18])=[CH:12][CH:11]=2

Participants

5

Reactant 2

HCID 14798Sodium HydroxideHCID 67041930HCID 67041930, compound

Product 1

HCID 67980245HCID 67980245, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Conditions

Temperature
50 °C

Procedure

Into a 50-mL round-bottom flask, was placed a solution of (R)-methyl 3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylate (178 mg, 0.51 mmol, 1.00 equiv) in methanol (15 mL). A solution of sodium hydroxide (102.6 mg, 2.56 mmol, 5.00 equiv) in water (1.5 mL) was added. The resulting solution was stirred overnight at 50° C. in an oil bath and concentrated to dryness. The residue and diluted by 10 ml of water and pH value of the aqueous solution was adjusted to pH=3-4 with 1N hydrogen chloride. The resulting solid was collected by filtration as product. This resulted in 130 mg (75%) of (R)-3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid.

Workup

  1. customInto a 50-mL round-bottom flask, was placed
  2. concentrationconcentrated to dryness
  3. additionThe residue and diluted by 10 ml of water and pH value of the aqueous solution
  4. filtrationThe resulting solid was collected by filtration as product
  5. customThis resulted in 130 mg (75%) of (R)-3-(2-methylpyrrolidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid

Sources & evidence

ORD record
ord-1c393a5dd9e34c11b387675d2ffaab92
Source dataset
uspto-grants-2015_11
Patent number
US09193693B2

Reaction notes

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