Hydrochloric Acid → 4-[[4-[[4-(2,2,2-Trifluoroethoxy)-1,2-benzoxazol-3-yl]oxymethyl]piperidin-1-yl]methyl]oxane-4-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

A mixture of methyl 4-{[4-({[4-(2,2,2-trifluoroethoxy)-1,2-benzisoxazol-3-yl]oxy}methyl)piperidin-1-yl]methyl}-tetrahydro-2H-pyran-4-carboxylate (89 mg, 0.18 mmol, PCT WO2006090224 EXAMPLE 1, Step 5) in tetrahydrofuran (1 mL), methanol (1 mL) and 2 N aq. sodium hydroxide (1 mL) is stirred at 70° C. for 17 h. The mixture is neutralized with 2 N hydrochloric acid (1 mL) and formed precipitate is filtered. The precipitate is triturated with diethylether to give 50 mg (58%) of the title compound as a white solid.

Provenance & Evidence