Substituted piperazines are a class of chemical compounds based on a piperazine core. [1] Some are used as recreational drugs and some are used in scientific research. [2]
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.
Trazodone, nefazodone, etoperidone, mepiprazole, and others produce mCPP as a metabolite. [3]
Many azapirones such as buspirone, gepirone, and tandospirone produce 1-PP as a metabolite.
Others
Compound | PAL # | Serotonin | Norepinephrine | Dopamine | Type | Ref | ||
---|---|---|---|---|---|---|---|---|
1-Benzylpiperazine (BZP) | ND | 6050–>100000 | 62.2–68 | 175–600 | NDRA | [5] [6] [7] [8] [9] [10] | ||
1-Phenylpiperazine (PP) | ND | 880 | 186 | 2530 | SNRA | [11] | ||
2-Me-PP (oMPP) | PAL-169 | 175 | 39.1 | 296–542 | SNDRA | [11] [12] [10] | ||
2-OMe-PP (oMeOPP) | ND | ND | ND | ND | ND | ND | ||
2-TFM-PP (oTFMPP) | ND | 570 | 350 | 11200 | SNRA | [11] | ||
2-SMe-PP (oMTPP) | ND | 270 | >10000 | >10000 | SRA | [11] | ||
2-Et-PP (oEtPP) | ND | 290 | 830 | >10000 | SNRA | [11] | ||
2-Chloro-PP (oCPP) | ND | 310 | 26 | >3000 | NRA | [11] | ||
2-Bromo-PP (oBPP) | ND | 132 | 33 | 250 | SNDRA | [11] | ||
2-Nitro-PP (oNPP) | ND | 1870 | 770 | >10000 | SNRA | [11] | ||
3-Chloro-PP (mCPP) | ND | 28–39 | 1400–>10000 | >10000–63000 | SRA | [6] [13] [14] [15] | ||
3-Fluoro-PP (mFPP) | ND | 115 | 340 | 2400 | SNRA | [11] | ||
3-Me-PP (mMPP) | ND | 110 | >20000 | >20000 | SRA | [11] | ||
3-OMe-PP (mMeOPP) | ND | 650 | >10000 | >10000 | SRA | [11] | ||
3-OH-PP (mOHPP) | ND | 230 | 174 | 2500 | SNRA | [11] | ||
3-TFM-PP (TFMPP) | ND | 121 | >10000 | >10000 | SRA | [8] [7] [9] | ||
4-Chloro-PP (pCPP) | ND | ND | ND | ND | ND | ND | ||
4-Fluoro-PP (pFPP) | ND | 230 | 3200 | >10000 | SRA | [11] | ||
4-Me-PP (pMPP) | PAL-233 | 220 | >10000 | >20000 | SRA | [11] [10] | ||
4-OMe-PP (pMeOPP) | ND | 3200 | 440–1500 | 6300–11000 | SNDRA | [11] [6] | ||
4-TFM-PP (pTFMPP) | ND | ND | ND | ND | ND | ND | ||
4-Ac-PP (pAcPP) | ND | 50 | 150 | 3000 | SNRA | [11] | ||
4-CN-PP (pCNPP) | ND | 36 | 6300 | >10000 | SRA | [11] | ||
4-Phenyl-PP (pPhPP) | ND | >10000 | 1520 | 5200 | NDRA | [11] | ||
4-OH-PP (pOHPP) | ND | >10000 | 230 | 850 | NDRA | [11] | ||
4-Nitro-PP (pNPP) | PAL-175 | 19–43 | >10000 | >10000 | SRA | [11] [4] | ||
2,3-Dichloro-PP (2,3-DCPP) | ND | 10 | 36 | 108 | SNDRA | [11] | ||
2,3-DiMe-PP (2,3-DMPP) | PAL-218 | 24–26 | 13.7–56 | 1207–1320 | SNRA | [11] [4] [10] | ||
2,4-Difluoro-PP (2,4-DFPP) | ND | 470 | 2300 | >10000 | SNRA | [11] | ||
3,4-Dichloro-PP (3,4-DCPP) | ND | ND | ND | ND | ND | ND | ||
3,4-Difluoro-PP (3,4-DFPP) | ND | 76 | 9200 | >10000 | SRA | [11] | ||
3-TFM-4-Cl-PP (TFMCPP) | PAL-179 | 33 | >10000 | >10000 | SRA | [4] | ||
Notes: Assays were done using rat brain synaptosomes. |