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.

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