“…First, a trifluoromethyl analog of flunarizine drug 3 was obtained with a 62% yield by stirring phenyl allyl chloride 2a with the corresponding piperazine in DMSO at rt. Flunarizine is used in the treatment of vertigo, cerebral circulatory disorders, and migraine prophylaxis. − As the search for novel activities of flunarizine is ongoing, − new trifluoromethyl derivatives might be useful. The modification of aromatic heterocycles with allyl chloride 2a was demonstrated on imidazole, which was smoothly alkylated to give compound 4 with a very good 82% yield.…”