Naltrindole hydrochloride is a highly potent and selective non-peptide δ opioid receptor antagonist with a Ki of 0.02 nM.
SB-612111 hydrochloride is a novel and potent human opiate receptor-like orphan receptor (ORL-1) antagonist with a high affinity for hORL-1 (Ki=0.33 nM). SB-612111 hydrochloride exhibits selectivity for μ-, κ- and δ-receptors with Ki values of 57.6 nM, 160.5 nM and 2109 nM, respecticely. SB-612111 hydrochloride effectively antagonizes the pronociceptive action of Nociceptin (HY-P0183) in an acute pain model[1].
5'-Guanidinonaltrindole (5'-GNTI) hydrochloride is a highly selective and potent κ-opioid receptor antagonist with a Ki of 0.18 nM for human κ-opioid receptor[1].
U-54494A is a benzamide derivative related to κ-opioid receptor agonists, U-54494A has an anticonvulsant activity[1].
Tegileridine is the potent agonist of opioid receptor (MOR). Tegileridine is an oxa spiro derivative which reduces the side effects mediated by β-arrestin. Tegileridine has the potential for the research of pains and pains-related diseases (extracted from patent WO2017063509A1)[1].
Nociceptin (1-13), amide is a potent ORL1 (OP4) receptor agonist with a pEC50 of 7.9 for mouse vas deferens and a Ki of 0.75 nM for binding to rat forebrain membranes[1][2].
Oliceridine hydrochloride (TRV130 hydrochloride) is a G protein biased μ opioid receptor agonist with an pEC50 of 8.1.
Opioid receptor modulator 1 is a opioid receptor modulator extracted from patent WO2014072809A2, Compound RA11 in EXAMPLE 7.
Gluten Exorphin B5 is an exogenous opioid peptides derived from wheat gluten, acts on opioid receptor, increases postprandial plasma insulin level in rats[1].
Naltrexone is an antagonist of Opioid receptor. Naltrexone inhibits cell proliferation in vivo. Naltrexone reduces tumor growth by interfering with cell signalling and modifying the immune system[1].
Diprenorphine is a non-selective opioid antagonist with Ki values of 0.017, 0.072 and 0.23 nM against κ-, μ- and δ-opioid receptors, respectively[1]. Diprenorphine can be used for central poststroke pain (CPSP) research[1].
Endomorphin 1, a high affinity, highly selective agonist of the μ-opioid receptor, displays reasonable affinities for kappa3 binding sites, with Ki value between 20 and 30 nM.
GSK1521498 free base (hydrochloride) is a potent and selective μ-opioid receptor (MOR) antagonist. GSK1521498 free base (hydrochloride) is being used for the treatment of disorders of compulsive consumption of food, alcohol, and drugs[1].
BTRX-335140 (CYM-53093) is a potent and selective, orally active κ opioid receptor (KOR) antagonist, has antagonist activity for κOR, μOR and δOR with IC50 values of 0.8 nM, 110 nM, and 6500 nM, respectively.BTRX-335140 endows with favorable in vitro ADMET and in vivo pharmacokinetic profiles and medication-like duration of action in rats. BTRX-335140 can distribute well into the CNS. ADMET (absorption, distribution, metabolism, excretion, and toxicity) [1].
ICI 174864 is a highly selective, potent δ-receptor antagonist. ICI 174864 is equipotent with naloxone and can not reverse the effect of the μ-agonist [D-Ala2, MePhe4, Gly-Ol5]enkephalin or the κ-agonist tifluadom[1].
Dermorphin TFA is a natural heptapeptide μ-opioid receptor (MOR) agonist found in amphibian skin. Inhibition of neuropathic pain[1].
BAN ORL 24 free base is a nociceptin/orphanin FQ (N/OFQ) peptide receptor (NOP) antagonist. BAN ORL 24 free base has antagonistic effect for nociceptin (NOP) receptor with KI value of 0.24 nM in CHO cell. BAN ORL 24 free base can be used for the research of cancer and analgesic[1].
AT-121 is a bifunctional nociception and mu opioid receptor agonist, with Kis of 3.67 and 16.49 nM, respectively. AT-121 is a safe, non-addictive analgesic, and shows antinociceptive and antiallodynic effects[1].
(D-Met2,Pro5)-Enkephalinamide is a highly potent opiate agonist, and shows antinociceptive activity[1][2][3].
Sec-O-Glucosylhamaudol is a natural compound extracted from Peucedanum japonicum Thunb, decreases levels of μ-opioid receptor, with analgesic effect[1].
Naltriben mesylate is a potent delta-2 receptor-selective antagonist, with Kis are 0.013, 19 and 152 nM for δ, μ and κ receptors respectively. Naltriben mesylate selectively attenuates alcohol intake in rats bred for alcohol preference[1][2].
(Rac)-SNC80 is a racemate of SNC80 (HY-101202). SNC80 (NIH 10815) is a potent, highly selective and non-peptide δ-opioid receptor agonist with a Ki of 1.78 nM and an IC50 of 2.73 nM. SNC80 shows antinociceptive, antihyperalgesic and antidepressant‐like effects. SNC80 has the potential for multiple headache disorders treatment[1][2][3][4][5][6].
μ opioid receptor agonist 2 （Compound H-3）is an optically pure oxaspiro ring substituted pyrrolopyrazole derivative, acts as a MOR receptor agonist and can be used for the research of pain and pain related diseases[1].
Deltakephalin is a potent, selective opiate δ-receptor agonist. Deltakephalin has analgesic properties[1].
UFP-101 is a potent, selective, and competitive antagonist of the nociceptin/orphanin FQ (NOP) receptor, with a pKi of 10.24. UFP-101 displays >3000-fold selectivity over δ, μ and κ opioid receptors. UFP-101 shows antidepressant-like effect[1][2].
Alvimopan dihydrate(LY 246736; ADL 8-2698) is a peripherally acting mu-opioid receptor (PAM-OR, IC50= 1.7 nM) antagonist for accelerating gastrointestinal recovery after surgery. IC50 Value: 1.7 nM (Mu-type opioid receptor) [1]Target: mu-opioid receptorin vitro: The dissociation rate of alvimopan from the micro opioid receptor (t(1/2)=30--44 min) was comparable to that of the long acting partial agonist buprenorphine (t(1/2)=44 min), but was slower than those of the antagonists naloxone (t(1/2)=0.82 min) and N-methylnaltrexone (t(1/2)=0.46 min) [2].in vivo: Alvimopan did not significantly accelerate GI-3 compared with placebo [6 mg: hazard ratio (HR) = 1.20, p = 0.080; 12 mg: HR = 1.24, p = 0.038). However, after adjustment for significant covariates (sex/surgical duration), benefits were significant for both doses (6 mg: HR = 1.24, p = 0.037; 12 mg: HR = 1.26, p = 0.028). Alvimopan also significantly accelerated time to GI-2 (6 mg: HR = 1.37, p = 0.008; 12 mg: HR = 1.33, p = 0.018) and DCO (6 mg: HR = 1.31, p = 0.008; 12 mg: HR = 1.28, p = 0.015) [3]. Alvimopan (1 and 3 mg/kg) significantly reversed this delayed GI transit when administered 45 min prior to surgery. However, the effects of alvimopan were less pronounced when administered following surgery [4].Toxicity:The most common treatment-emergent adverse events across all treatment groups were nausea, vomiting, and hypotension; the incidence of nausea and vomiting was reduced by 53 percent in thealvimopan 12-mg group [5].Clinical trial: Intercostal Nerve Block With Liposome Bupivacaine in Subjects Undergoing Posterolateral Thoracotomy. Phase 3
SB-612111 is a novel and potent human opiate receptor-like orphan receptor (ORL-1) antagonist with a high affinity for hORL-1 (Ki=0.33 nM). SB-612111 exhibits selectivity for μ-, κ- and δ-receptors with Ki values of 57.6 nM, 160.5 nM and 2109 nM, respecticely. SB-612111 effectively antagonizes the pronociceptive action of Nociceptin (HY-P0183) in an acute pain model[1].
Hemorphin-7 is a hemorphin peptide, an endogenous opioid peptide derived from the β-chain of hemoglobin. Hemorphin peptides exhibits antinociceptive and antihypertensive activities, activating opioid receptors and inhibiting angiotensin-converting enzyme (ACE).
Bevenopran is a peripheral μ-opioid receptor antagonist.
Naltrexone-d4 is deuterium labeled Naltrexone.