Coupling of 4-bromobenzoyl chloride (I) with amine (II) by means of Et3N in CH2Cl2 or THF yields bromo derivative (III), which is then converted into boronic acid derivative (IV) by treatment with triisopropyloxyboron and n-BuLi in THF/hexane. Suzuki reaction between (IV) and oxadiazole (V) by means of Pd(PPd3)4 and Na2CO3 in dimethoxyethane (DME)/H2O affords compound (VI), which is finally hydrogenated over Raney-Ni in H2O/MeOH/AcOH to furnish the desired product.