Hydrochloric Acid → [4-(3-Cyclopentyloxy-5-phenylethynyl-phenylsulfanyl)-2-methyl-phenoxy]-acetic Acid

Participants

Reaction Steps

{[4-(3-Cyclopentyloxy-5-phenylethynyl-phenylsulfanyl)-2-methyl-phenoxy]-acetic acid ethyl ester (270 mg; 0.46 mmol) was dissolved in ethanol (10 mL), and aqueous 1 N sodium hydroxide (3 mL) was added. The reaction mixture was stirred for 16 h. acidified with 1 N aqueous hydrochloric acid and extracted with ethyl acetate. The organic phase was dried, evaporated to dryness and purified by prep HPLC (method B). Yield: 120 mg (69%). HPLC-MS: m/z: 459.1 (M+H)+; Rt: 2.86 min.

Provenance & Evidence