Hydrochloric Acid → 3-[(4-{[(tert-Butoxycarbonyl)(methyl)amino]methyl}-2-phenyl-1H-pyrrol-1-yl)sulfonyl]benzoic acid

HRID 554356Notes

Reaction equation

HRID 554356 reaction equation
[C:1]([O:5][C:6]([N:8]([CH2:10][C:11]1[CH:12]=[C:13]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[N:14]([S:16]([C:19]2[CH:20]=[C:21]([CH:26]=[CH:27][CH:28]=2)[C:22]([O:24]C)=[O:23])(=[O:18])=[O:17])[CH:15]=1)[CH3:9])=[O:7])([CH3:4])([CH3:3])[CH3:2].[OH-].[Na+].Cl>O1CCCC1.CO>[C:1]([O:5][C:6]([N:8]([CH2:10][C:11]1[CH:12]=[C:13]([C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=2)[N:14]([S:16]([C:19]2[CH:20]=[C:21]([CH:26]=[CH:27][CH:28]=2)[C:22]([OH:24])=[O:23])(=[O:18])=[O:17])[CH:15]=1)[CH3:9])=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 66924742Methyl 3-[(4-{[(tert-butoxycarbonyl)(methyl)amino]methyl}-2-phenyl-1H-pyrrol-1-yl)sulfonyl]benzoate

Product 1

HCID 669249903-[(4-{[(tert-Butoxycarbonyl)(methyl)amino]methyl}-2-phenyl-1H-pyrrol-1-yl)sulfonyl]benzoic acidYield 83.7%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

Methyl 3-[(4-{[(tert-butoxycarbonyl)(methyl)amino]methyl}-2-phenyl-1H-pyrrol-1-yl)sulfonyl]benzoate (710 mg) was dissolved in tetrahydrofuran (5 mL) and methanol (3 mL), and 1 mol/L aqueous sodium hydroxide solution (3 mL) was added at 0° C. The mixture was stirred at 0° C. for 1 hr, and at room temperature for 2 hr, cooled again to 0° C., acidified with 1 mol/L hydrochloric acid, and the mixture was extracted with ethyl acetate. The extract was washed with water and saturated brine, dried over anhydrous magnesium sulfate and the solvent was evaporated under reduced pressure. The residual crystals were washed with a mixed solvent of isopropyl ether and hexane to give the title compound as colorless crystals (yield 577 mg, 83%).

Workup

  1. waitat room temperature for 2 hr
  2. temperaturecooled again to 0° C.
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure
  7. washThe residual crystals were washed with a mixed solvent of isopropyl ether and hexane

Sources & evidence

ORD record
ord-acba661f8e8e4226a195d70145f3ed5c
Source dataset
uspto-grants-2011_11
Patent number
US08048909B2

Reaction notes

Loading…