Stepharine 是天然的生物碱，可直接靶向 TLR4 (TLR4 抑制剂)，结合 TLR4/MD2 复合体。Stepharine 具有抗衰老、抗病毒和抗高血压等活性。

PNU-282987 is a potent α7 nicotinic acetylcholine receptor (nAChR) agonist with an EC50 of 154 nM. PNU-282987 is also a functional antagonist of the 5-HT3 receptor with an IC50 of 4541 nM. PNU-282987 can be used for the research of central and peripheral nervous systems.

TOK-8801 是一种合成的二氢咪唑并噻唑羧酰胺，正在开发作为免疫调节剂。