The title compound has been synthesized by condensation of amidino benzoic acid (I) with primary amine (II) using EDC and HOAt.
In an alternative procedure, amine (II) was condensed with 4-cyanobenzoic acid (III) to give amide (IV). Subsequent addition of hydroxylamine to the cyano group of (IV) afforded N-hydroxy amidine (V), which was acetylated with Ac2O to produce (VI). This compound was finally reduced to the target amidine by hydrogenation over Lindlar catalyst.