Chart 1.

Chemical structures and binding affinities of serotonin transporter ligands (1–5): ^aWilson et al.,¹⁰,²⁷, ^bChoi et al.,³⁵,³⁷,⁴⁷, ^cShiue et al.,⁴², ^dHuang et al., ³³, ^eOya et al.,³⁶. It is important to note that there are at least two different nomenclatures for the same molecule 3. Depending on the method for counting the positions on ring A, 5-FADAM (3) could also be named as 4-FADAM⁴²,⁴³,⁴⁶,⁵⁴.