A series of 2-aryl tryptamines have been identified as high-affinity h6-HT2
A antagonists. Structure-activity relationship studies have shown that h5-H
T2A affinity can be attained via modifications to the tryptamine side chain
and that selectivity over h5-HT2C and hD(2) receptors can be controlled by
suitable C-2 aryl groups. (C) 2000 Elsevier Science Ltd. All rights reserv
ed.