Diethyl Ether → HCID 21901924, compound

Participants

Reaction Conditions

Reaction Steps

Following the procedure described in Example 72, 1-Bromomethyl-3,5-bis-trifluoromethyl-benzene was used to alkylate 56 mg (0.19 mmol) of [1-(4-Chloro-phenyl)-cyclobutyl]-(3-hydroxy-piperidin-1-yl)-methanone, forming the ether adduct [3-(3,5-Bis-trifluoromethyl-benzyloxy)-piperidin-1-yl]-[1-(4-chloro-phenyl)-cyclobutyl]-methanone (39 mg, 39%). A portion of this compound (22 mg, 0.043 mmol) was dissolved in 1 mL of THF and excess lithium aluminum hydride (16 mg, ca. 10 equivalents) was added. The solution was heated to reflux for 5 minutes, cooled to 0° C., and quenched by dropwise addition of 0.5 mL 1M NaOH. Additional THF (10 mL) was added, the suspension was stirred at room temperature for 30 minutes, and then was filtered though a plug of sodium sulfate. The solution thus obtained was concentrated in vacuo and the residue was purified by flash chromatography on silica gel using as eluent a gradient of ethyl acetate in hexane containing 1% ammonium hydroxide. 3-(3,5-Bis-trifluoromethyl-benzyloxy)-1-[1-(4-chloro-phenyl)-cyclobutylmethyl]-piperidine, 189, was obtained (12 mg, 56%). Data for this compound: MS 506 (M++1).

Provenance & Evidence