Substituted piperazine#Benzylpiperazines

{{Short description|Class of chemical compounds}}

Substituted piperazines are a class of chemical compounds based on a piperazine core.{{Cite journal |last1=Laras |first1=Y. |last2=Garino |first2=C. |last3=Dessolin |first3=J. |last4=Weck |first4=C. |last5=Moret |first5=V. |last6=Rolland |first6=A. |last7=Kraus |first7=J.-L. |date=2009-02-01 |title=New N4-substituted piperazine naphthamide derivatives as BACE-1 inhibitors |url=https://doi.org/10.1080/14756360802048939 |journal=Journal of Enzyme Inhibition and Medicinal Chemistry |volume=24 |issue=1 |pages=181–187 |doi=10.1080/14756360802048939 |issn=1475-6366 |pmid=18770069|s2cid=85385527 |url-access=subscription }} Some are used as recreational drugs and some are used in scientific research.{{Cite journal |last1=Alghamdi |first1=Saad |last2=Alshehri |first2=Mohammed M. |last3=Asif |first3=Mohammad |title=The Neuropharmacological Potential of Piperazine Derivatives: A Mini- Review |url=https://www.eurekaselect.com/article/120285 |journal=Mini-Reviews in Organic Chemistry |year=2022 |language=en |volume=19 |issue=7 |pages=798–810 |doi=10.2174/1570193x19666220119120211|url-access=subscription }}

List of substituted piperazines

=Benzylpiperazines=

{{See also|Benzylpiperazine#Chemical derivatives}}

File:Benzylpiperazine.svg|1-Benzylpiperazine (BZP)

File:Methylbenzylpiperazine.svg|1-Methyl-4-benzylpiperazine (MBZP)

File:DBZP.svg|1,4-Dibenzylpiperazine (DBZP)

File:MDBZP.svg|3,4-Methylenedioxy-1-benzylpiperazine (MDBZP)

File:2C-B-BZP.svg|4-Bromo-2,5-dimethoxy-1-benzylpiperazine (2C-B-BZP)

File:Methoxypiperamide.png|Methoxypiperamide (MeOP, MEXP) ((4-methoxyphenyl)(4-methylpiperazin-1-yl)methanone)

File:Sunifiram.svg |Sunifiram (1-benzoyl-4-propanoylpiperazine)

File:3-Methylbenzylpiperazine structure.png|3-Methylbenzylpiperazine (3-MeBZP)

File:Befuraline.svg|Befuraline
(also produces benzylpiperazine as a metabolite)

File:Fipexide.svg|Fipexide
(also produces substituted benzylpiperazine as a metabolite)

File:Piberaline.svg|Piberaline
(also produces benzylpiperazine as a metabolite)

=Phenylpiperazines=

{{See also|Phenylpiperazine}}

==''ortho''-Substituted==

Enpiprazole is known to produce oCPP as a metabolite. It was initially anticipated to produce oMeOPP as a metabolite, but this proved not to be the case.

==''meta''-Substituted==

Trazodone, nefazodone, etoperidone, mepiprazole, and others produce mCPP as a metabolite.{{cite journal | vauthors = Costa Alegre MD, Barbosa DJ, Dinis-Oliveira RJ | title = Metabolism of m-CPP, trazodone, nefazodone, and etoperidone: clinical and forensic aspects | journal = Drug Metab Rev | volume = | issue = | pages = 1–32 | date = February 2025 | pmid = 39945551 | doi = 10.1080/03602532.2025.2465482 | url = }}

==''para''-Substituted==

==Multiple substitutions==

File:Dichlorophenylpiperazine-ifa.png|2,3-Dichlorophenylpiperazine (2,3-DCPP)

File:3,4-DCPP_structure.svg|3,4-Dichlorophenylpiperazine (3,4-DCPP)

==Others==

=Other arylpiperazines=

Many azapirones such as buspirone, gepirone, and tandospirone produce 1-PP as a metabolite.

=By drug class=

Activities

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|+ {{Nowrap|Monoamine release ({{Abbrlink|EC50|half-maximal effective concentration}}, nM) of arylpiperazines}}

Compound{{Abbr|PAL #|Phenyl Amine Library Number}}data-sort-type="number" | Serotonindata-sort-type="number" | Norepinephrinedata-sort-type="number" | DopamineTypeRef
1-Benzylpiperazine (BZP){{Abbr|ND|No data}}6050–>10000062.2–68175–600NDRA{{cite journal | vauthors = Rothman RB, Baumann MH | title = Therapeutic potential of monoamine transporter substrates | journal = Curr Top Med Chem | volume = 6 | issue = 17 | pages = 1845–1859 | date = 2006 | pmid = 17017961 | doi = 10.2174/156802606778249766 | url = }}{{cite journal | vauthors = Nagai F, Nonaka R, Satoh Hisashi Kamimura K | title = The effects of non-medically used psychoactive drugs on monoamine neurotransmission in rat brain | journal = Eur J Pharmacol | volume = 559 | issue = 2-3 | pages = 132–137 | date = March 2007 | pmid = 17223101 | doi = 10.1016/j.ejphar.2006.11.075 | url = https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=00665d67c36dcf1777989b70cc901c654420a0c7| url-access = subscription }}
1-Phenylpiperazine (PP){{Abbr|ND|No data}}8801862530SNRA{{cite journal | vauthors = Severinsen K, Kraft JF, Koldsø H, Vinberg KA, Rothman RB, Partilla JS, Wiborg O, Blough B, Schiøtt B, Sinning S | title = Binding of the amphetamine-like 1-phenyl-piperazine to monoamine transporters | journal = ACS Chem Neurosci | volume = 3 | issue = 9 | pages = 693–705 | date = September 2012 | pmid = 23019496 | pmc = 3447394 | doi = 10.1021/cn300040f | url = }}
2-Me-PP (oMPP)PAL-16917539.1296–542SNDRA{{cite journal | vauthors = Kohut SJ, Jacobs DS, Rothman RB, Partilla JS, Bergman J, Blough BE | title = Cocaine-like discriminative stimulus effects of "norepinephrine-preferring" monoamine releasers: time course and interaction studies in rhesus monkeys | journal = Psychopharmacology (Berl) | volume = 234 | issue = 23-24 | pages = 3455–3465 | date = December 2017 | pmid = 28889212 | pmc = 5747253 | doi = 10.1007/s00213-017-4731-5 | url = }}{{cite journal | vauthors = Reith ME, Blough BE, Hong WC, Jones KT, Schmitt KC, Baumann MH, Partilla JS, Rothman RB, Katz JL | title = Behavioral, biological, and chemical perspectives on atypical agents targeting the dopamine transporter | journal = Drug Alcohol Depend | volume = 147 | issue = | pages = 1–19 | date = February 2015 | pmid = 25548026 | pmc = 4297708 | doi = 10.1016/j.drugalcdep.2014.12.005 | url = }}
2-OMe-PP (oMeOPP){{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}
2-TFM-PP (oTFMPP){{Abbr|ND|No data}}57035011200SNRA
2-SMe-PP (oMTPP){{Abbr|ND|No data}}270>10000>10000SRA
2-Et-PP (oEtPP){{Abbr|ND|No data}}290830>10000SNRA
2-Chloro-PP (oCPP){{Abbr|ND|No data}}31026>3000NRA
2-Bromo-PP (oBPP){{Abbr|ND|No data}}13233250SNDRA
2-Nitro-PP (oNPP){{Abbr|ND|No data}}1870770>10000SNRA
3-Chloro-PP (mCPP){{Abbr|ND|No data}}28–391400–>10000>10000–63000SRA{{cite journal | vauthors = Rothman RB, Baumann MH | title = Therapeutic and adverse actions of serotonin transporter substrates | journal = Pharmacol Ther | volume = 95 | issue = 1 | pages = 73–88 | date = July 2002 | pmid = 12163129 | doi = 10.1016/s0163-7258(02)00234-6 | url = }}{{cite journal | vauthors = Rothman RB, Baumann MH | title = Serotonin releasing agents. Neurochemical, therapeutic and adverse effects | journal = Pharmacol Biochem Behav | volume = 71 | issue = 4 | pages = 825–836 | date = April 2002 | pmid = 11888573 | doi = 10.1016/s0091-3057(01)00669-4 | url = }}{{cite journal | vauthors = Rothman RB, Baumann MH, Blough BE, Jacobson AE, Rice KC, Partilla JS | title = Evidence for noncompetitive modulation of substrate-induced serotonin release | journal = Synapse | volume = 64 | issue = 11 | pages = 862–869 | date = November 2010 | pmid = 20842720 | pmc = 2941209 | doi = 10.1002/syn.20804 | url = }}
3-Fluoro-PP (mFPP){{Abbr|ND|No data}}1153402400SNRA
3-Me-PP (mMPP){{Abbr|ND|No data}}110>20000>20000SRA
3-OMe-PP (mMeOPP){{Abbr|ND|No data}}650>10000>10000SRA
3-OH-PP (mOHPP){{Abbr|ND|No data}}2301742500SNRA
3-TFM-PP (TFMPP){{Abbr|ND|No data}}121>10000>10000SRA{{cite journal | vauthors = Baumann MH, Clark RD, Budzynski AG, Partilla JS, Blough BE, Rothman RB | title = N-substituted piperazines abused by humans mimic the molecular mechanism of 3,4-methylenedioxymethamphetamine (MDMA, or 'Ecstasy') | journal = Neuropsychopharmacology | volume = 30 | issue = 3 | pages = 550–560 | date = March 2005 | pmid = 15496938 | doi = 10.1038/sj.npp.1300585 | url = }}{{cite journal | vauthors = Baumann MH, Clark RD, Budzynski AG, Partilla JS, Blough BE, Rothman RB | title = Effects of "Legal X" piperazine analogs on dopamine and serotonin release in rat brain | journal = Ann N Y Acad Sci | volume = 1025 | issue = | pages = 189–197 | date = October 2004 | pmid = 15542717 | doi = 10.1196/annals.1316.024 | url = }}{{cite book | vauthors = Blough B | chapter = Dopamine-releasing agents | veditors = Trudell ML, Izenwasser S | title = Dopamine Transporters: Chemistry, Biology and Pharmacology | pages = 305–320 | date = July 2008 | isbn = 978-0-470-11790-3 | oclc = 181862653 | ol = OL18589888W | publisher = Wiley | location = Hoboken [NJ] | doi = | url = https://books.google.com/books?id=QCagLAAACAAJ | chapter-url = https://bitnest.netfirms.com/external/Books/Dopamine-releasing-agents_c11.pdf }}
4-Chloro-PP (pCPP){{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}
4-Fluoro-PP (pFPP){{Abbr|ND|No data}}2303200>10000SRA
4-Me-PP (pMPP)PAL-233220>10000>20000SRA
4-OMe-PP (pMeOPP){{Abbr|ND|No data}}3200440–15006300–11000SNDRA
4-TFM-PP (pTFMPP){{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}
4-Ac-PP (pAcPP){{Abbr|ND|No data}}501503000SNRA
4-CN-PP (pCNPP){{Abbr|ND|No data}}366300>10000SRA
4-Phenyl-PP (pPhPP){{Abbr|ND|No data}}>1000015205200NDRA
4-OH-PP (pOHPP){{Abbr|ND|No data}}>10000230850NDRA
4-Nitro-PP (pNPP)PAL-17519–43>10000>10000SRA
2,3-Dichloro-PP (2,3-DCPP){{Abbr|ND|No data}}1036108SNDRA
2,3-DiMe-PP (2,3-DMPP)PAL-21824–2613.7–561207–1320SNRA{{cite journal | vauthors = Rothman RB, Partilla JS, Baumann MH, Lightfoot-Siordia C, Blough BE | title = Studies of the biogenic amine transporters. 14. Identification of low-efficacy "partial" substrates for the biogenic amine transporters | journal = J Pharmacol Exp Ther | volume = 341 | issue = 1 | pages = 251–262 | date = April 2012 | pmid = 22271821 | doi = 10.1124/jpet.111.188946 | url = | pmc = 3364510 }}
2,4-Difluoro-PP (2,4-DFPP){{Abbr|ND|No data}}4702300>10000SNRA
3,4-Dichloro-PP (3,4-DCPP){{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}{{Abbr|ND|No data}}
3,4-Difluoro-PP (3,4-DFPP){{Abbr|ND|No data}}769200>10000SRA
3-TFM-4-Cl-PP (TFMCPP)PAL-17933>10000>10000SRA
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| colspan="9" style="width: 1px; background-color:#eaecf0; text-align: center;" | Notes: Assays were done using rat brain synaptosomes.

See also

References

{{Reflist|2}}