Hydrochloric Acid → HCID 67460128, compound

Participants

Reaction Steps

A solution of ethyl 1-[[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinylcarboxylate (3.6 g, 10.36 mmol) (i.e. the product of Example 17, Step C) in methanol (10 mL) was treated with 1 M sodium hydroxide aqueous solution (15.54 mL, 15.54 mmol) at 0° C. The reaction mixture was stirred at room temperature for 2 h and then 1 M hydrochloric acid (15.54 mL, 15.54 mmol) was added, and most of methanol was evaporated in vacuo leaving white crystals. The crystals were filtered and dried to give 2.25 g of the title compound as a white solid.

Provenance & Evidence