Synthesis and structure-activity relationship of novel lactam-fused chroman derivatives having dual affinity at the 5-HT1A receptor and the serotonin transporter

The structure-activity relationship (SAR) for three series of lactam-fused chroman derivatives possessing 3-amino substituents was evaluated. Many compounds exhibited affinities for both the 5-HT1A receptor and the 5-HT transporter. Compounds 45 and 53 demonstrated 5-HT1A antagonist activities in the in vitro cAMP turnover model. (C) 2009 Elsevier Ltd. All rights reserved.