GR 113808 is a potent and highly selective 5-HT4 receptor antagonist (pKb= 8.8). GR 113808 shows 300-fold selectivity over 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2C and 5-HT3 receptors.

SB228357 is a selective, potent oral active 5-HT2C/2B receptor antagonist with pKi values of 6.9, 8.0 and 9.0 for 5-HT2A, 5-HT2B and 5-HT2C, respectively. SB228357 has antidepressant/anxiolytic effects.

SR59230A hydrochloride is a potent, selective, and blood-brain barrier penetrating β3-adrenergic receptor antagonist with IC50s of 40, 408, and 648 nM for β3, β1, and β2 receptors, respectively.

Proglumide sodium is a nonpeptide and orally active cholecystokinin (CCK)-A/B receptors antagonist. Proglumide sodium selective blocks CCK’s effects in the central nervous system (CNS). Proglumide sodium has ability to inhibit gastric secretion and to protect the gastroduodenal mucosa. Proglumide sodium also has antiepileptic and antioxidant activities.

Proglumide hemicalcium is a nonpeptide and orally active cholecystokinin (CCK)-A/B receptors antagonist. Proglumide hemicalcium selective blocks CCK’s effects in the central nervous system (CNS). Proglumide hemicalcium has ability to inhibit gastric secretion and to protect the gastroduodenal mucosa. Proglumide hemicalcium also has antiepileptic and antioxidant activities.

YM022 is a highly potent, selective and orally active gastrin/cholecystokinin (CCK)-B receptor (CCK-BR) antagonist. YM022 shows the Ki values of 68 pM and 63 nM for CCK-B and CCK-A receptor, respectively. YM022 can inhibit gastrin-induced gastric acid secretion and histidine decarboxylase activation in vivo.

J-113863 is a potent and selective CCR1 (CD18) antagonist with IC50 values of 0.9 nM and 5.8 nM for human and mouse CCR1 receptors, respectively. J-113863 is also a potent antagonist of the human CCR3 (IC50 of 0.58 nM) , but a weak antagonist of the mouse CCR3 (IC50 of 460 nM). J-113863 is inactive against CCR2, CCR4 and CCR5, as well as the LTB4 or TNF-α receptors. Anti-inflammatory effect.

IRL 2500 is a potent Endothelin receptor antagonist. IRL 2500 shows IC50 values of 1.3 and 94 nM for ETB and ETA receptors, respectively. IRL 2500 inhibits ETB receptor-mediated blood pressure increase and renal vascular resistance in rats in vivo.

SRX246 is a potent, CNS-penetrant, highly selective, orally bioavailable vasopressin 1a (V1a) receptor antagonist (Ki=0.3 nM for human V1a). SRX246 has no interaction at V1b and V2 receptors. SRX246 also displays negligible binding at 64 others receptors classes, including 35 G-proteincoupled receptors. SRX246 can be used for treatment of stress-related disorders.

Dazoxiben is a potent and orally active thromboxane (TX) synthase inhibitor.

LY367385 is a highly potent and selective mGluR1a antagonist. LY367385 has an IC50 of 8.8 μM for inhibits of quisqualate-induced phosphoinositide (PI) hydrolysis, compared with > 100 μM for mGlu5a. LY367385 has neuroprotective, anticonvulsant and antiepileptic effects.

TC-MCH 7c, a phenylpyridone derivative, is an orally available, selective and brain-penetrable MCH1R antagonist with an IC50 of 5.6 nM for hMCH1R. TC-MCH 7c has Kis of 3.4 nM and 3.0 nM of human and mouse MCH1R, respectively.

SNAP 94847 hydrochloride is a novel, high affinity selective melanin-concentrating hormonereceptor1 (MCHR1) antagonist with (Ki= 2.2 nM, Kd=530 pM), it displays >80-fold and >500-fold selectivity over MCHα1A and MCHD2 receptors respectively. SNAP 94847 hydrochloride binds with high affinity to the mouse and rat MCHR1 with minimal cross-reactivity to other GPCR, ion channels, enzymes, and transporters.

MA-2029 is a selective, orally active, and competitive motilin receptor antagonist (IC50=4.9 nM). MA-2029 is selective for the motilin receptor over various other receptors and ion channels. MA-2029 may be useful for gastrointestinal disorders associated with disturbed gastrointestinal motility.

JNJ-5207787 is a nonpeptidic, selective and penetrate the blood-brain barrier neuropeptide Y Y2 receptor (Y2) antagonist. JNJ-5207787 inhibits the binding of peptide YY (PYY) with pIC50s of 7.0 and 7.1 for human Y2 receptor and rat Y2 receptor, respectively. JNJ-5207787 is >100-fold selective versus human Y1, Y4, and Y5 receptors.

CYM 9484 is a selective and highly potent neuropeptide Y (NPY) Y2 receptor antagonist with an IC50 value of 19 nM.

Naloxone benzoylhydrazone (NalBzoH) is a mixed agonist/antagonist. Naloxone benzoylhydrazone is a prototypic κ3-opioid receptor agonist, and a partial agonist at the cloned μ and δ opioid receptors, and an antagonist at opioid-like NOP receptors. Naloxone benzoylhydrazone has potently analgesia effect.

DG-041 is a potent, high affinity and selective EP3 receptor antagonist with IC50s of 4.6 nM and 8.1 nM in the binding and FLIPR assay, respectively. DG-041 inhibits PGE2 facilitation of platelet aggregation. DG-041 crosses the blood-brain barrier.

CYM50260 is a potent and exquisitely selective sphingosine-1-phosphate 4 receptor (S1P4-R) agonist with an EC50 of 45 nM. CYM50260 displays no activity against S1P1-R, S1P2-R, S1P3-R and S1P5-R.

CYM50308 is a potent, selective and high affinity sphingosine-1-phosphate receptor 4 (S1P4-R) agonist with an EC50 of 56 nM. CYM50308 displays 37-fold more selective for S1P4-R than S1P5-R. CYM50308 has no activity at S1P1-R, S1P2-R and S1P3-R subtypes at concentrations up to 25 μM.

L-803087 is a potent and selective somatostatin sst4 receptor agonist with a Ki of 0.7 nM, which is > 280-fold higher than other somatostatin receptors. L-803087 facilitates AMPA-mediated hippocampal synaptic responses in vitro and increases kainate-induced seizures in mice.

L-161982 is a selective EP4 receptor antagonist. L-161982 completely blocks PGE2-induced ERK phosphorylation and cell proliferation of HCA-7 cells. L-161982 alleviates collagen-induced arthritis in mice.