4-Methylmethylphenidate

{{Short description|Stimulant drug}}

{{cs1 config|name-list-style=vanc}}

{{Infobox drug

| verifiedrevid = 421303810

| IUPAC_name = methyl (2R)-2-(4-methylphenyl)-2-[(2R)-piperidin-2-yl]acetate

| image = 4-methylmethylphenidate.png

| image_class = skin-invert-image

| width = 200px

| tradename =

| pregnancy_AU =

| pregnancy_US =

| legal_AU =

| legal_CA = Schedule III

| legal_DE = NpSG

| legal_UK = Class B

| legal_US =

| legal_status =

| routes_of_administration =

| CAS_number_Ref = {{cascite|correct|CAS}}

| CAS_number = 191790-79-1

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 1Y11XUO4EY

| CAS_supplemental =
680996-70-7 (hydrochloride)

| ATC_prefix =

| PubChem = 44296147

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChemSpiderID = 8281556

| C=15 | H=21 | N=1 | O=2

| smiles = Cc2ccc(cc2)C(C(=O)OC)C1CCCCN1

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChI = 1S/C15H21NO2/c1-11-6-8-12(9-7-11)14(15(17)18-2)13-5-3-4-10-16-13/h6-9,13-14,16H,3-5,10H2,1-2H3/t13-,14-/m0/s1

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey = WJZNCJIOIACDBR-KBPBESRZSA-N

}}

threo-4-Methylmethylphenidate (4-MeTMP) is a stimulant drug related to methylphenidate. It is slightly less potent than methylphenidate and has relatively low efficacy at blocking dopamine reuptake despite its high binding affinity, which led to its investigation as a possible substitute drug for treatment of stimulant abuse (cf. nocaine).{{cite journal | vauthors = Wayment HK, Deutsch H, Schweri MM, Schenk JO | title = Effects of methylphenidate analogues on phenethylamine substrates for the striatal dopamine transporter: potential as amphetamine antagonists? | journal = Journal of Neurochemistry | volume = 72 | issue = 3 | pages = 1266–74 | date = March 1999 | pmid = 10037500 | doi = 10.1046/j.1471-4159.1999.0721266.x | doi-access = free }} On the other hand, several other simple ring-substituted derivatives of threo-methylphenidate such as the 4-fluoro and 3-chloro compounds are more potent than methylphenidate both in efficacy as dopamine reuptake inhibitors and in animal drug discrimination assays.{{cite journal | vauthors = Deutsch HM, Shi Q, Gruszecka-Kowalik E, Schweri MM | title = Synthesis and pharmacology of potential cocaine antagonists. 2. Structure-activity relationship studies of aromatic ring-substituted methylphenidate analogs | journal = Journal of Medicinal Chemistry | volume = 39 | issue = 6 | pages = 1201–9 | date = March 1996 | pmid = 8632426 | doi = 10.1021/jm950697c }}{{cite journal | vauthors = Schweri MM, Deutsch HM, Massey AT, Holtzman SG | title = Biochemical and behavioral characterization of novel methylphenidate analogs | journal = The Journal of Pharmacology and Experimental Therapeutics | volume = 301 | issue = 2 | pages = 527–35 | date = May 2002 | pmid = 11961053 | doi = 10.1124/jpet.301.2.527 }}{{cite journal | vauthors = Davies HM, Hopper DW, Hansen T, Liu Q, Childers SR | title = Synthesis of methylphenidate analogues and their binding affinities at dopamine and serotonin transport sites | journal = Bioorganic & Medicinal Chemistry Letters | volume = 14 | issue = 7 | pages = 1799–802 | date = April 2004 | pmid = 15026075 | doi = 10.1016/j.bmcl.2003.12.097 }}

Image:Methylphenidate derivatives.png (4F-MPH) and 3-chloromethylphenidate (3-CTMP)]]{{clear left}}

Legality

4-Methylmethylphenidate was banned in the UK as a Temporary Class Drug from June 2015 following its unapproved sale as a designer drug.[https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/420983/TCDO_methylphenidate_NPS.pdf Methylphenidate-based NPS: A review of the evidence of use and harm. Advisory Council on the Misuse of Drugs, 31 March 2015]{{cite web | url=https://www.gov.uk/government/publications/letter-to-mike-penning-on-methylphenidate-based-novel-psychoactive-substances | title=Letter to Mike Penning on methylphenidate-based novel psychoactive substances | publisher=Advisory Council on the Misuse of Drugs | date=25 June 2015 | access-date=25 June 2015}}{{cite web | url=https://www.gov.uk/government/publications/ministerial-response-to-the-advisory-council-on-the-misuse-of-drugs-about-2-new-methylphenidate-based-substances | title=Ministerial response to the Advisory Council on the Misuse of Drugs about 2 new methylphenidate-based substances | publisher=Home Office | date=25 June 2015 | access-date=25 June 2015}}

In the United States, 4-methylmethylphenidate may be considered illegal if intended for human consumption under the federal analogue act as a structural analog of methylphenidate.

In the United States, on September 22, 2023, the DEA filed a proposed rule for placement of ethylphenidate into Schedule I status, which would include its isomers. 4-Methylmethylphenidate is a positional isomer of ethylphenidate and thus the scheduling of ethylphenidate into Schedule I status would cause 4-methylmethylphenidate to be a Schedule I substance as well.{{cite web | url=https://www.federalregister.gov/documents/2023/09/22/2023-20439/schedules-of-controlled-substances-placement-of-ethylphenidate-in-schedule-i | title=Federal Register :: Request Access }}

See also

References