Substituted tryptamines, or simply
tryptamines, also conceptualizable as
serotonin analogues, are
organic compounds which may be thought of as being derived from
tryptamine itself. The molecular structures of all tryptamines contain an
indole ring, joined to an
amino (NH2) group via an ethyl (-CH2–CH2-)
sidechain. In substituted tryptamines, the indole ring, sidechain, and/or amino group are modified by substituting another group for one of the hydrogen (H) atoms.