MEN 10207 (acetate) is a selective antagonist of the NK-2 tachykinin receptor. MEN 10207 (acetate) induces tachykinin-induced contractions in rat bladder and guinea pig airways in vivo. MEN 10207 (acetate) inhibits [β-Ala 8 ]-NKA (4-10)-induced enhancement of bladder motility in anesthetized rats and [β-Ala 8 ]-NKA (4-10)-induced enhancement of bronchoconstriction in anesthetized guinea pigs.

UK-224671 is a potent and selective NK2 receptor antagonist. UK-224671 is affected by P-gp efflux and poor intrinsic membrane permeability, resulting in low oral bioavailability.

GSK256471 is a non-peptide tachykinin NK3 receptor antagonist with a pKi of 8.9 for the human recombinant NK3 receptor and 8.4 for the guinea pig native receptor. GSK256471 exhibits >100-fold selectivity for NK1 (pKi = 5.2) and NK2 (pKi = 7.3) receptors. GSK256471 noncompetitively inhibits neurokinin B (NKB)-induced inositol phosphate accumulation, and this inhibition is irreversible. GSK256471 inhibits wet dog shaking behavior and suppresses dopamine release. GSK256471 could be used to study schizophrenia.

PD-161182 is a non-peptide NK-3 antagonist. PD-161182 can be studied in NK-3-related central nervous system disturbances, pain, inflammation, pulmonary and skin diseases.

SB 414240 is a selective neurokinin-2 receptor (NK-2R) antagonist with Kis of 1 nM and 193 nM for human NK-3R and human NK-2R, respectively. SB 414240 does not bind the human μ-opioid receptor (hMOR). SB 414240 can be used for the study of neurological disease.

DNK-333 is a potent and balanced dual NK1 and NK2 receptor antagonist with IC50 values of 4.8 nM and 5.5 nM, respectively. DNK-333 blocks the Neurokinin A (NKA)-induced bronchoconstriction in asthma.

TKA-731 is an NK1 receptor antagonist. TKA-731 can reverse mechanical hyperalgesia. TKA-731 can be used for research on neuropathic pain.

SLV-317 (free base) is an antagonist of the neurokinin-1 receptor with oral activity. SLV-317 (free base) can effective antagonist of substance P-induced effects.

MDL 105212A is a potent and orally active nonpeptide neurokinin receptor (NK-1/NK-2) tachykinin receptor antagonist. MDL 105212A can be used for the researches of inflammation, immunology and neurological disease, such as asthma.

CJ-17493 is a neurokinin-1 (NK1) receptor antagonist, with a Ki of 0.2 nM. CJ-17493 shows moderate affinity for the verapamil-binding site of L-type Ca2+ channels (IC50 = 164 nM) and site 2 of sodium channels (IC50 = 48 nM). CJ-17493 can be used for the study of neurological diseases.

CP-99994 is a Tachykinin neurokinin 1 (NK-1) receptor antagonist with a Ki of 0.25 nM. CP-99994 prevents colorectal sensitization in the context of visceral hypersensitivity. CP-99994 reduces colorectal hypersensitivity induced by acetic acid injections in a model of bladder-colon cross-sensitization. CP-99994 hydrochloride attenuates the neuroglial interactions and MAPK-p38 phosphorylation associated with visceral hypersensitivity.

Dazodeunetant (Example 56) is a nitrogen-containing fused ring derivative. Dazodeunetant is an inhibitor of neurokinin (NK). Dazodeunetant has an IC50 0f 75.99 nM against NK3R in HEK293-NK3 (IP1). Dazodeunetant can be studied in research for menopausal hot flashes.

WIN 62577 is a species-selective tachykinin NK1 receptor antagonist. WIN 62577 is also an allosteric enhancer with micromolar potency at M3 receptors. WIN 62577 exhibits potent antiviral activity against SARS-CoV-2.

Osanetant (SR142801) monohydrochloride is a selective NK3 receptor antagonist. Osanetant monohydrochloride produces anxiolytic- and antidepressant-like effects.

CP 122721 is an orally active NK1 receptor antagonist. CP 122721 attenuates cisplatin-induced vomiting in ferrets (ID50: 0.08 mg/kg). CP 122721 inhibits kainate (KA)-induced seizure activity and CA1 neuronal cell death in rats. CP 122721 is useful in the study of depression, asthma, and irritable bowel syndrome (IBS).

ASN-1377642 is a NK1 receptor antagonist with a Ki value of 251 nM. ASN-1377642 shows antitumor action in breast cancer cells with NK1R-Tr high expression.

Anthrotainin, a tetracyclic compound, is a substance P binding inhibitor with an IC50 of 3 μM.

(1R,2S,3R)-Aprepitant (Compound ent-4) is a competitive human neurokinin-1 (NK-1) receptor antagonist. (1R,2S,3R)-Aprepitant is promising for research of cancers and postoperative nausea and vomiting.

SB 222200 is a selective, reversible and competitive antagonist of human NK-3 receptor(Ki=4.4 nM) that effectively crosses the blood-brain barrier.

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.

Orvepitant maleate (GW823296 maleate) is potent, selective, orally active and well-tolerated neurokinin-1 receptor (NK-1) antagonist with a pKi of 10.2 for human neurokinin-1 receptor. Orvepitant maleate can across the blood-brain barrier. Orvepitant maleate has the potential for depressive disorder and chronic refractory cough (CRC) treatment.

FR 113680 is a tripeptide substance P antagonist that interacts selectively with the NK1 neurokinin receptor.

Substance P antagonists (SPA).

Rolapitant (SCH619734) is a potent, selective and orally active neurokinin NK1 receptor antagonist with a Ki of 0.66 nM.

Fosaprepitant (MK-0517, L-758,298) is a water-soluble phosphoryl prodrug for Aprepitant which is a NK1 antagonist.

MEN 10207 is a selective NK-2 tachykinin receptor (Neurokinin Receptor) antagonist. MEN 10207 has pA2 values of 5.2, 7.9 and 4.9 in three monoreceptor in vitro assays for NK-1, NK-2 and NK-3 tachykinin receptors, respectively.

Septide ((Pyr6,Pro9)-Substance P) is a potent NK1 receptor agonist with a Kd value of 0.55 nM.

Rolapitant (SCH619734) hydrochloride is a potent, selective, long-acting and orally active neurokinin 1 (NK1) receptor antagonist with a Ki of 0.66 nM. Rolapitant hydrochloride does not interact with CYP3A4. Rolapitant hydrochloride shows potent anti-emetic activity in a ferret emesis model.

L-760735 is a high affinity, selective and orally active NK1 receptor antagonist with an IC50 of 0.19 nM for human NK1 receptors. L-760735 exhibits anxiolytic and antidepressant-like effects.

Imnopitant dihydrochloride is a neurokinin NK1 receptor antagonist.