Hydrochloric Acid → 1-[1-(3',4'-Dichloro-1,1'-biphenyl-3-yl)-2-piperazin-1-ylethyl]cyclohexanol dihydrochloride

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Reaction Steps

tert-butyl 4-[2-(3′,4′-dichloro-biphenyl-3-yl)-2-(1-hydroxycyclohexyl)ethyl]piperazine-1-carboxylate (0.39 g 0.73 mmol) was dissolved in diethyl ether (15 mL) then a 2N ethereal solution of hydrochloric acid (10 mL) was added. Methanol (approximately 1 mL) was then added until the resulting precipitate dissolved, and the homogeneous solution was stirred for 18 h. The precipitated product was collected by filtration, washed with diethyl ether and dried in a vacuum oven at 50° C. to yield 0.28 g (81%) of 1-[1-(3′,4′-dichloro-1,1′-biphenyl-3-yl)-2-piperazin-1-ylethyl]cyclohexanol dihydrochloride as a white solid. MS (ESI) m/z 433/435/437 ([M+H]+); HRMS: calcd for C24H30N2OCl2.2.00 HCl, 433.1813. found (ESI), 433.1813.

Provenance & Evidence