Synthesis and biological investigations of 3β-aminotropane arylamide derivatives with atypical antipsychotic profile.

This work is a continuation of our previous research, concentrating this time on lead structure modification to increase the 5-HT receptor affinity and water solubility of designed compounds. Therefore, the compounds synthesised within the present project included structural analogues of 3β-acylamine derivatives of tropane with the introduction of a methyl substituent in the benzyl ring and a 2-quinoline, 3-quinoline, or 6-quinoline moiety. A series of novel 3βaminotropane derivatives was evaluated for their affinity for 5-HT, 5-HT, and D receptors, which allowed for the identification of compounds , , and as ligands with highest affinity for the tested receptors; they were then subjected to further evaluation in preliminary in vivo studies. Selected compounds and displayed antipsychotic properties in the d-amphetamine-induced and MK-801-induced hyperlocomotor activity test in mice. Moreover, compound showed significant antidepressant-like activity in the forced swim test in mice.