Substituted phenidates
Substituted phenidates (also known as phenidates) are a class of chemicals that include compounds that typically produce traditional stimulant effects. Pharmacologically, they tend to act as reuptake inhibitors of the monoamine neurotransmitters dopamine and norepinephrine, and occasionally serotonin.[citation needed]

Chemistry
Substituted phenidates are a chemical class based upon the molecule methylphenidate. The molecular structure of methylphenidate is comprised of a phenethylamine core with a carbon chain substitution at the Rα position that links to the RN position, forming a piperidine ring. It also includes a substitution at the Rβ position of methyl acetate.
List of substituted phenidates
Compound | R3 | R4 | RO | Structure |
---|---|---|---|---|
Methylphenidate | H | H | CH3 | |
Ethylphenidate | H | H | CH2CH3 | |
Isopropylphenidate | H | H | CH(CH3)2 | |
Propylphenidate | H | H | CH2CH2CH3 | |
4-Methyl Methylphenidate | H | CH3 | CH3 | |
3,4-CTMP | Cl | Cl | CH3 | |
4F-MPH | H | F | CH3 | |
4F-EPH | H | F | CH2CH3 | |
Methylnaphthidate (HDMP-28) | CH=CH- | CH=CH- | CH3 | |
Ethylnaphthidate | CH=CH- | CH=CH- | CH2CH3 |