Sodium Hydroxide → [5-(4-{1-ethyl-1-[4-(1-hydroxy-cyclopentylethynyl)-3-methyl-phenyl]-propyl}-phenyl)-pyridin-3-yl]-acetic Acid

HRID 547082Notes

Reaction equation

HRID 547082 reaction equation
[OH-].[Na+].C[O:4][C:5](=[O:39])[CH2:6][C:7]1[CH:8]=[N:9][CH:10]=[C:11]([C:13]2[CH:18]=[CH:17][C:16]([C:19]([CH2:37][CH3:38])([C:22]3[CH:27]=[CH:26][C:25]([C:28]#[C:29][C:30]4([OH:35])[CH2:34][CH2:33][CH2:32][CH2:31]4)=[C:24]([CH3:36])[CH:23]=3)[CH2:20][CH3:21])=[CH:15][CH:14]=2)[CH:12]=1.[Cl-].[NH4+]>CO>[CH2:20]([C:19]([C:16]1[CH:15]=[CH:14][C:13]([C:11]2[CH:12]=[C:7]([CH2:6][C:5]([OH:39])=[O:4])[CH:8]=[N:9][CH:10]=2)=[CH:18][CH:17]=1)([C:22]1[CH:27]=[CH:26][C:25]([C:28]#[C:29][C:30]2([OH:35])[CH2:31][CH2:32][CH2:33][CH2:34]2)=[C:24]([CH3:36])[CH:23]=1)[CH2:37][CH3:38])[CH3:21]

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 25517Ammonium ChlorideHCID 57709096[5-(4-{1-ethyl-1-[4-(1-hydroxy-cyclopentylethynyl)-3-methyl-phenyl]-propyl}-phenyl)-pyridin-3-yl]-acetic Acid Methyl Ester

Product 1

HCID 15942547[5-(4-{1-ethyl-1-[4-(1-hydroxy-cyclopentylethynyl)-3-methyl-phenyl]-propyl}-phenyl)-pyridin-3-yl]-acetic AcidYield 80%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A 2 N sodium hydroxide aqueous solution (0.1 mL, 0.176 mmol) was added to a solution of [5-(4-{1-ethyl-1-[4-(1-hydroxy-cyclopentylethynyl)-3-methyl-phenyl]-propyl}-phenyl)-pyridin-3-yl]-acetic acid methyl ester (Example 148-(1); 14.6 mg, 29.4 mmol) in methanol (0.3 mL), and the mixture was stirred at room temperature for 2.5 hours. A saturated aqueous ammonium chloride solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by thin layer silica gel chromatography (dichloromethane:methanol=9:1) to give the title compound (11.5 mg, 80%).

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by thin layer silica gel chromatography (dichloromethane:methanol=9:1)

Sources & evidence

ORD record
ord-fd533dbf2d6d4a8898bbc15072329631
Source dataset
uspto-grants-2011_05
Patent number
US07935688B2

Reaction notes

Loading…