Hydrochloric Acid → cis(+/-)-2-(4-{[(5-Methyl-4-trifluoromethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-1,3-thiazole-5-carboxylic acid

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Reaction Steps

Ethyl cis(±)-2-(4-{[(5-methyl-4-trifluoromethyl-1H-imidazol-2-yl)carbonyl]amino}-3-methoxypiperidin-1-yl)-1,3-thiazole-5-carboxylate obtained in Example (36f) (30 mg, 0.065 mmol) was dissolved in methanol (1 mL). A 1 N aqueous sodium hydroxide solution (1 mL) was added, and the mixture was stirred at room temperature for 1.5 hours. The reaction solution was neutralized with 1 N hydrochloric acid, and the residue was purified by reverse phase silica gel column chromatography (elution solvent: distilled water, methanol/distilled water=20/80, 60/40) to obtain 9.1 mg of the title compound as a white solid (32%).

Provenance & Evidence