A series of calcineurin inhibiting compounds 1 consisting of a central aromatic N‐heterocycle, two aryl substituents and a 3‐dimethylaminopropyl chain was synthesized by introduction of the side chain. A corresponding haloheterocycle 3 was transformed into a 3‐dimethylaminopropynylheterocycle 2 by Sonogashira coupling and was in turn hydrogenated in the presence of Pd/C to afford the 3‐dimethylaminopropyl‐sub‐stiuted heterocycles 1. Some of the products showed calcineurin inhibiting activity.