Lithium Hydroxide → 3-(6-(4-Phenoxyphenylamino)pyrimidin-4-ylamino)benzoic acid

HRID 1668886Notes

Reaction equation

HRID 1668886 reaction equation
[O:1]([C:8]1[CH:13]=[CH:12][C:11]([NH:14][C:15]2[N:20]=[CH:19][N:18]=[C:17]([NH:21][C:22]3[CH:23]=[C:24]([CH:29]=[CH:30][CH:31]=3)[C:25]([O:27]C)=[O:26])[CH:16]=2)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Li+].[OH-]>CO.C1COCC1.O>[O:1]([C:8]1[CH:9]=[CH:10][C:11]([NH:14][C:15]2[N:20]=[CH:19][N:18]=[C:17]([NH:21][C:22]3[CH:23]=[C:24]([CH:29]=[CH:30][CH:31]=3)[C:25]([OH:27])=[O:26])[CH:16]=2)=[CH:12][CH:13]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 57708324Methyl 3-(6-(4-phenoxyphenylamino)pyrimidin-4-ylamino)benzoate

Product 1

HCID 577083343-(6-(4-Phenoxyphenylamino)pyrimidin-4-ylamino)benzoic acidYield 69.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To a stirred solution of methyl 3-(6-(4-phenoxyphenylamino)pyrimidin-4-ylamino)benzoate (0.3 g, 0.72 mmol) in methanol/THF (2/2, 4 mL) was added LiOH (0.122 g, 2.9 mmol) in H2O (4 mL) and the reaction mixture was stirred at rt for 2 h. It was concentrated under reduced pressure. the residue was diluted with water (2 mL) and was extracted with dichloromethane (5 mL). The aqueous layer was separated and was acidified with 1.5 N HCl (pH ˜5-6) to get a white precipitate, which was collected by filtration and dried under vacuum to give 3-(6-(4-phenoxyphenylamino)pyrimidin-4-ylamino)benzoic acid (0.2 g 69%) as a white solid.

Workup

  1. concentrationIt was concentrated under reduced pressure
  2. additionthe residue was diluted with water (2 mL)
  3. extractionwas extracted with dichloromethane (5 mL)
  4. customThe aqueous layer was separated
  5. customto get a white precipitate, which
  6. filtrationwas collected by filtration
  7. customdried under vacuum

Sources & evidence

ORD record
ord-ff5f76e9cb1047e9806edade5c47a0b8
Source dataset
uspto-grants-2011_08
Patent number
US07989465B2

Reaction notes

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