Acylation of the anilino ester (I) with 4-nitrobenzoyl chloride (II) affords amide (III). After reduction of the 4-nitrobenzamide (III) by catalytic hydrogenation, the resultant amine (IV) is condensed with (2-ethyl-1-imidazolyl)benzoyl chloride (V) to furnish diamide (VI). Subsequent ester group saponification in (VI) gives acid (VII). This is finally coupled with N-methylpiperazine (VIII) in the presence of EDC and HOBt to produce the title compound.