Substituted isotryptamines, or simplyisotryptamines, also known as2-(1-indolyl)ethylamines, are a group ofindoles closely related to thetryptamines but with theethylamineside chain located at the 1 position of the indolering system rather than at the 3 position as in tryptamines. Hence, they arepositional isomers of tryptamines.
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