172906-90-0

PB 28 is a selective σ2 receptor agonist. It is also an antitumor and cytotoxic agent.

ChEBI: PB28 is a member of the class of tetralins that is tetralin that is substituted by 3-(4-cyclohexylpiperazin-1-yl)propyl and methoxy groups at positions 1 and 5, respectively. It is a sigma 2 (sigma2) receptor agonist (Ki = 0.68 nM) and exhibits antineoplastic and anti SARS-CoV-2 activities. It has a role as an anticoronaviral agent, an antineoplastic agent, an apoptosis inducer and a sigma-2 receptor agonist. It is an aromatic ether, a member of piperazines and a member of tetralins.

High affinity σ 2 receptor agonist (K i values are 0.8 and 15.2 nM for σ 2 and σ 1 receptors respectively) that displays minimal affinity at other receptors. Inhibits electrically evoked twitch in guinea pig bladder and ileum (EC 50 values are 2.62 and 3.96 μ M respectively). Displays antiproliferative and cytotoxic effects in SK-N-SH neuroblastoma and C6 glioma cells.