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Substituted amphetamines

Substituted amphetamines, also known as amphetamines, are a class of chemicals that include compounds with psychoactive effects.
Chemistry
Substituted amphetamines are a chemical class based upon the molecule amphetamine. Amphetamine is made up of a phenethylamine molecule. The chemical structure of a substituted amphetamine is the same as the organic molecule amphetamine, except some substitutions are made at the phenyl and amine sites, typically of methyl and ethyl chains.
Pharmacology
The substituted amphetamine class of psychedelic, entactogenic and stimunlant drugs works via their action upon the 5-HT2A receptor.
Examples
Substituted amphetamines are seen throughout organic chemistry, and include many psychoactive drugs.