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IUPAC name
Other names PD28
CAS number 172906-90-0
Molecular formula C24H38N2O
Molar mass 370.57 g/mol
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

PB28[1] is an agonist of the sigma-2 receptor.[2][3]

It is derived from cyclohexylpiperazine.


  1. ^ Berardi F, Colabufo NA, Giudice G, Perrone R, Tortorella V, Govoni S, Lucchi L (1996). "New sigma and 5-HT1A receptor ligands: omega-(tetralin-1-yl)-n-alkylamine derivatives". J. Med. Chem. 39 (1): 176–82. doi:10.1021/jm950409c. PMID 8568804.  
  2. ^ Cassano G, Gasparre G, Contino M, Niso M, Berardi F, Perrone R, Colabufo NA (2006). "The sigma-2 receptor agonist PB28 inhibits calcium release from the endoplasmic reticulum of SK-N-SH neuroblastoma cells". Cell Calcium 40 (1): 23–8. doi:10.1016/j.ceca.2006.03.004. PMID 16687172.  
  3. ^ Azzariti A, Colabufo NA, Berardi F, Porcelli L, Niso M, Simone GM, Perrone R, Paradiso A (2006). "Cyclohexylpiperazine derivative PB28, a sigma2 agonist and sigma1 antagonist receptor, inhibits cell growth, modulates P-glycoprotein, and synergizes with anthracyclines in breast cancer". Mol. Cancer Ther. 5 (7): 1807–16. doi:10.1158/1535-7163.MCT-05-0402. PMID 16891467.  

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