Hydrochloric Acid → 3-{2-Fluoro-4-[(4-{1-[(4-phenyl-1,3-thiazol-2-yl)thio]butyl}benzyl)oxy]phenyl}propanoic acid

Temperature

50 °C

To a solution of ethyl 3-{2-fluoro-4-[(4-{1-[(4-phenyl-1,3-thiazol-2-yl)thio]butyl}benzyl)oxy]phenyl}propanoate (0.130 g, 0.236 mmol) in a mixture of ethanol (0.5 mL) and tetrahydrofuran (1 mL) was added 2N aqueous sodium hydroxide solution (0.25 mL) and the mixture was stirred at 50° C. for 3 hr. Water was added to the reaction mixture, and the mixture was acidified with 1N hydrochloric acid and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=20:80-70:30) to give the title compound (0.119 g, yield 97%) as a colorless oil.

1. extractionextracted with ethyl acetate
2. washThe extract was washed with saturated brine
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=20:80-70:30)

ORD record

ord-db09b5093de84474a3dd7cd5ff67e65e

Source dataset

uspto-grants-2009_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07585880B2