Hydrochloric Acid → [2-(4-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-thiazol-4-yl]-acetic Acid

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Reaction Steps

A 2 N sodium hydroxide aqueous solution (0.12 mL) was added to a solution of [2-(4-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-thiazol-4-yl]-acetic acid ethyl ester (Example 69-(2); 34.0 mg, 0.0635 mmol) in methanol (0.85 mL) at room temperature, and the mixture was stirred at room temperature for 4.5 hours. The mixture was acidified with dilute hydrochloric acid aqueous solution, followed by extraction with ethyl acetate. The extract was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure to give the title compound (32 mg, 100%).

Provenance & Evidence