MCL0020 is a potent and selective melanocortin MC4 receptor antagonist, with an IC50 of 11.63 nM. MCL0020 dose-dependently and significantly attenuates restraint stress-induced anorexia without affecting food intake.

UCM 608 is a high affinity melatonin (MT) membrane receptor agonist. The pKi values for MT1 and MT2 are 10.7 and 10.4.

DH97 is a potent and selective antagonist of MT2 melatonin receptor, with a pKi of 8.03 for human MT2. DH97 shows 89- and 229-fold selectivity for human MT2 over human mt1 and Xenopus mel1c receptor subtypes. DH97 can inhibit melatonin-induced enhancement of electrically-evoked responses.

UPF-523 (AIDA), a rigid (carboxyphenyl) glycine derivative, is a relatively potent and selective antagonist of group I metabotropic glutamate receptors (mGlu1a) with an IC50 of 214 μM. But UPF-523 has no effect on group II (mGlu2), group III (mGlu4) receptors or ionotropic glutamate receptors. UPF-523 has the potential for the research of the acute arthritis.

L-AP3, metabotropic glutamate receptor (mGluR) antagonist, inhibits D-phosphoserine and L-phosphoserine with IC50s of 368 μM and 2087 μM, respectively.

SB 218795 is a potent and selective non-peptide NK3 receptor antagonist, with a Ki 13 nM for hNK3. SB 218795 shows about 90-fold and 7000-fold selectivity for hNK3 over hNK2 and hNK1, respectively. SB 218795 can inhibit NK3 receptor-mediated pupillary constriction of the rabbit.

Imnopitant is a NK1 receptor antagonist (WO2020132716, compound 1) .

2-Methylthio-AMP (2-MeSAMP) diTEA is a selective and direct P2Y12 antagonist. 2-Methylthio-AMP diTEA is an inhibitor of ADP-dependent platelet aggregation.

BGC-20-1531 (PGN 1531) free base is a potent and selective prostanoid EP4 receptor antagonist, with a pKb of 7.6. BGC-20-1531 free base has the potential for the research of migraine headache.

BMY-14802 hydrochloride (BMY-14802-1) is a selective and orally active sigma receptor antagonist with an IC50 of 112 nM. BMY-14802 hydrochloride is also a 5-HT1A and adrenergic α1 receptors agonist. BMY-14802 hydrochloride has antipsychotic effects.

CCR4 antagonist 3 hydrochloride is an orally active, potent and selective CCR4 antagonist. CCR4 antagonist 3, featuring a novel piperidinyl-azetidine motif, has IC50s of 22 nM and 50 nM in the calcium flux and CTX assay. CCR4 antagonist 3 has antitumor activity.

L-372662 is a potent and orally active non-peptide oxytocin antagonist with a Ki value of 4.8. The Kd value of L-372662 for wild-type hOTR and [A318G]OTR is 5.8 nM and 73 nM. L-372662 shows selectivity to OTR:V1aR.

Angiopeptin TFA, a cyclic octapeptide analogue of somatostatin, a weak sst2/sst5 receptor partial agonist with IC50 values of 0.26 nM and 6.92 nM, respectively. Angiopeptin TFA is a potent inhibitor of growth hormone release and insulin-like growth factor-1 (IGF-1) production. Angiopeptin TFA inhibit adenylate cyclase or stimulate extracellular acidification. Angiopeptin TFA has the potential for coronary atherosclerosis research.

Litorin, an amphibian bombesin peptide derivative, is an bombesin receptor agonist. Litorin stimulates the contraction of smooth muscle, stimulates gastrin, gastric acid, and pancreatic secretion, and suppresses the nutriment in vivo.

Setmelanotide (RM-493, BIM-22493, CAM 4072) is a cyclic peptide full agonist of melanocortin-4 receptor (MC4R) with an EC50 of 0.27 nM and a Ki of 2.1 nM.

[Leu31,Pro34]- Neuropeptide Y (porcine), a Neuropeptide Y (NPY) analog, is a selective NPY Y1 receptor agonist. [Leu31,Pro34]- Neuropeptide Y (porcine) exhibits anxiolytic effects.

A2B receptor antagonist 2 (compound 18) is an adenosine receptor A2B antagonist, with Ki values of 2.30 μM, 6.8 μM and 3.44 μM for rA1, rA2A and hA2B, respectively.

Elinzanetant is a neurokinin receptors antagonist used for the research of Schizophrenia.

Medifoxamine is a monoamine re-uptake inhibiting antidepressive drug which preferentially inhibits dopamine reuptake.

Vibozilimod (example 33) is a S1p1 receptor agonist (extracted from patent WO2012140020A1).

Onzigolide (BIM-23A760), a chimeric dopamine-somatostatin compound, shows potent agonist activity at both DA type 2 (D2R) and SST type 2 (SSTR2) receptors.

Trazpiroben (TAK-906) is a dopamine D2/D3 receptor antagonist used for chronic research of moderate-to-severe gastroparesis.