Protection of 3-hydroxybenzaldehyde (I) with methoxymethyl chloride afforded the corresponding methoxymethyl ether (II). Subsequent addition of 4-tert-butylphenylmagnesium bromide (III) produced the diarylcarbinol (IV), which was converted to chloride (V) by means of CCl4 and PPh3. Condensation of (V) with 1-benzylpiperazine (VI) yielded the disubstituted piperazine (VII). The methoxymethyl ether of (VII) was finally deprotected with aqueous HCl to provide the title compound.