Alkylation of piperidinylbenzimidazole (I) with tosylate (II) provided the N-substituted piperidine (III). The imidazole N of (III) was subsequently alkylated with 2-chloroethyl ethyl ether (IV) in the presence of NaH, yielding the N-ethoxyethyl derivative (V). Finally, the two-step, acid and basic, hydrolysis of the oxazoline ring of (V) furnished the title carboxylic acid.