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. Author manuscript; available in PMC: 2021 Nov 26.
Published in final edited form as: Neurosci Biobehav Rev. 2019 May 14;110:150–173. doi: 10.1016/j.neubiorev.2018.07.015

Fig. 1.

Fig. 1.

Chemical structures of amphetamines and synthetic cathinones (and their common pharmacophore) generated by lengthening of the alkyl chain, expansion of the nitrogen terminus and/or ring substitution. Synthetic cathinones have an oxygen addition at the β-carbon position (β-ketone).