This document discusses the development of novel drug candidates targeting behavioral and psychological symptoms of dementia. The researchers designed a library of hybrid molecules that act as 5-HT6 receptor antagonists and D2 receptor partial agonists. Compound 14 was identified as the most promising candidate, showing high affinity for 5-HT6 and D2 receptors and negligible affinity for targets associated with side effects. In animal tests, Compound 14 demonstrated significantly improved antidepressant and anxiolytic activity compared to existing 5-HT6 or D2-selective drugs, suggesting it warrants further evaluation for treating behavioral and psychological symptoms of dementia.