AZD9496 maleate is a highly potent and selective antagonist of the estrogen receptor alpha (ERα), exhibiting an IC50 value of 0.28 nM. This compound, AZD9496 maleate, is an orally bioavailable selective estrogen receptor degrader (SERD).
OP-3633 is an effective and selective steroidal glucocorticoid receptor (GR) antagonist (IC50: 29 nM). OP-3633 shows low progesterone receptor (PR) agonism and androgen receptor (AR) antagonism. It also has an inhibition of GR transcriptional activity.
Aganodine is a guanidine that activates presynaptic imidazoline receptors. Aganodine inhibits the presynaptic release of norepinephrine through its agonism at imidazoline receptors.
(±)-WIN 55,212-2 is a potent aminoalkylindole cannabinoid (CB) receptor agonist with a Ki value of 62.3 and 3.3 nM for human recombinant central cannabinoid (CB1) and peripheral cannabinoid (CB2) receptors, respectively. In contrast, the enantiomer (-)-WIN 55,212-3 acts a partial inverse agonist at CB1 (pIC50 = 5.5) and as a competitive neutral antagonist of CB2, reversing the inverse agonism evoked by SR 144528 (pEC50 = 5.3). (+)-WIN 55,212 (mesylate) is a mixture of the two enantiomers, (+)-WIN 55,212-2 and (-)-WIN 55,212-3.
OL-135 is a CNS penetrant, highly potent and selective reversible inhibitor of FAAH. OL-135 exhibits analgesic pharmacology in various animal models without the motor impairment associated with direct CB1 agonism.
Fabomotizole, also known as Afobazole, Obenoxazine and CM346, is an anxiolytic drug launched in Russia in the early 2000s. It produces anxiolytic and neuroprotective effects without any sedative or muscle relaxant actions. Its mechanism of action remains poorly defined however, with GABAergic, NGF- and BDNF-release-promoting, MT1 receptor agonism, MT3 receptor antagonism, and sigma agonism suggested as potential mechanisms. Fabomotizole was shown to inhibit MAO-A reversibly and there might be also some involvement with serotonin receptors.