Acetic Acid → [8-Chloro-2-difluoromethoxy-4-methyl-3-(4-pyrazol-1-ylbenzyl)quinolin-5-yloxy]acetic acid

HRID 1922103Notes

Reaction equation

HRID 1922103 reaction equation
C[O:2][C:3](=[O:34])[CH2:4][O:5][C:6]1[CH:15]=[CH:14][C:13]([Cl:16])=[C:12]2[C:7]=1[C:8]([CH3:33])=[C:9]([CH2:21][C:22]1[CH:27]=[CH:26][C:25]([N:28]3[CH:32]=[CH:31][CH:30]=[N:29]3)=[CH:24][CH:23]=1)[C:10]([O:17][CH:18]([F:20])[F:19])=[N:11]2.[OH-].[Na+].C(O)(=O)C>CO.O>[Cl:16][C:13]1[CH:14]=[CH:15][C:6]([O:5][CH2:4][C:3]([OH:34])=[O:2])=[C:7]2[C:12]=1[N:11]=[C:10]([O:17][CH:18]([F:19])[F:20])[C:9]([CH2:21][C:22]1[CH:23]=[CH:24][C:25]([N:28]3[CH:32]=[CH:31][CH:30]=[N:29]3)=[CH:26][CH:27]=1)=[C:8]2[CH3:33]

Participants

6

Reactant 3

HCID 176Acetic AcidHCID 14798Sodium HydroxideHCID 67457920[8-Chloro-2-difluoromethoxy-4-methyl-3-(4-pyrazol-1-ylbenzyl) quinolin-5-yloxy]acetic acid methyl ester

Product 1

HCID 25096079[8-Chloro-2-difluoromethoxy-4-methyl-3-(4-pyrazol-1-ylbenzyl)quinolin-5-yloxy]acetic acidYield 9.8%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent2×

Procedure

A solution of [8-chloro-2-difluoromethoxy-4-methyl-3-(4-pyrazol-1-ylbenzyl)quinolin-5-yloxy]acetic acid methyl ester (0.38 g) in methanol (7.0 mL) and water (0.7 mL) was treated with 5.0 M aqueous sodium hydroxide solution (0.32 mL), and the resulting mixture was stirred at room temperature for 3 hours. The mixture was acidified by the addition of glacial acetic acid, diluted with water and extracted with ethyl acetate. The combined extracts were dried over magnesium sulfate and then concentrated under reduced pressure. The residue was purified by trituration with methanol, followed by column chromatography on silica gel to afford title compound as a white solid (0.036 g).

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe combined extracts were dried over magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by trituration with methanol

Sources & evidence

ORD record
ord-1dbe8848ec6c4d1583ab911473400d77
Source dataset
uspto-grants-2012_05
Patent number
US08173812B2

Reaction notes

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