m2 machr

Otenzepad (AF-DX 116) is a selective M2 mAChR antagonist with IC50 values of 386 nM in rat heart and 640 nM in rabbit peripheral lung.

(S)-(+)-Dimethindene maleate is an orally available, selective muscarinic M2 receptor and histamine H1 receptor antagonist that also inhibits muscarinic M1, M3, and M4 receptors.

YM-58790 free base is a potent mAChR antagonist that inhibits M1 mAChR, M2 mAChR, and M3 mAChR with Ki values of 28 nM, 260 nM, and 15 nM, respectively. It inhibits reflex rhythmic bladder contractions in rats by inhibiting bladder pressurization.

SCH 57790 is a novel and selective muscarinic M(2) receptor antagonist that releases acetylcholine and enhances cognition in experimental animals for the treatment of Alzheimer's disease.

Solifenacin (YM905 free base) (YM905 free base) is a novel muscarinic receptor antagonist, its pKis for M1, M2 and M3 receptors is of 7.6, 6.9 and 8.0, respectively.

Pimethixene (Calmixen) is a highly potent 5-HT1A, 5-HT2A, 5-HT2B, 5-HT2C, histamine H1, dopamine D2 and D4.4 as well as muscarinic M1 and M2 receptors antagonist(pKis of 7.63, 10.22, 10.44, 8.42, 10.14, 8.19, 7.54, 8.61 and 9.38, respectively).

W-84 dibromide (HDMPPA) is a M2-receptor selective modulator.

mAChR M2 agonist

AF-DX 384 free base is a selective and efficient M2 muscarinic acetylcholine receptor (M2 mAChR) and M4 muscarinic acetylcholine receptor (M4 mAChR) antagonist. It can be used for research on neurodegenerative diseases like Parkinson's.

Terodiline hydrochloride is an antagonist of M1-selective muscarinic receptor (mAChR)(Kbs of 15, 160, 280, and 198 nM in rabbit vas deferens (M1), atria (M2), bladder (M3) and ileal muscle (M3), respectively).

LASSBio-873, an orally active muscarinic cholinergic receptor (mAChR) agonist, is capable of crossing the blood-brain barrier. It exhibits potent analgesic effects on acute and inflammatory pain, which can be inhibited by the intrathecal injection of the M2 receptor antagonist methoctramine [1].

NSC 23766 is a Rac1 GTPase inhibitor that inhibits Rac1 activation by targeting guanine nucleotide exchange factors (GEFs), while it has no inhibitory effect on the closely related targets Cdc42 and RhoA, affecting the cell cycle and inhibiting cell proliferation in a dose-dependent manner. It also regulates endothelial NO synthase expression and endothelial function, and inhibits platelet aggregation and γ-secretase activity.NSC23766 competitively inhibits M2 muscarinic acetylcholine receptor (M2 mAChR)-induced Rac1 activation in neonatal rat cardiomyocytes.

Muscarinic agonist 3 (compound 45) is a muscarinic mAChR M1 M2 M4 agonist with EC50 values of 3.2 nM, 32 nM, and 1.7 nM, respectively [1].

PF-06767832 is a high quality M1 selective PAM (M1 PAM EC50 = 60 nM; M2-M5 PAM EC50 > 10 microM; CNS MPO = 4.9). PF-06767832 has well aligned physicochemical properties, good brain penetration and pharmacokinetic properties. Extensive safety profiling

LY2119620 is a specific, and allosteric agonist of human M2 and M4 muscarinic acetylcholine receptors.

G-Protein antagonist peptide acetate is a truncated substance P-related peptide, competes with receptor for G protein binding. G-Protein antagonist peptide acetate inhibits the activation of Gi or Go by M2 muscarinic cholinergic receptor (M2 mAChR) or of Gs by beta-adrenergic receptor in the reconstituted phospholipid vesicles, assayed by receptor-promoted GTP hydrolysis

Aclidinium bromide (LAS-W 330) is a synthetic anticholinergic agent that is used as an inhalant for treatment of acute bronchospasm due to chronic bronchitis or emphysema. Aclidinium has not been implicated in causing liver enzyme elevations or clinically apparent acute liver injury.

Umeclidinium bromide (GSK573719A) is a novel mAChR antagonist.

muscarinic M1 receptor antagonist

Bryonolic acid (20-epi-Bryonolic acid), a triterpenoid extracted from Sandoricum indicum, possesses immunomodulatory, anti-inflammatory, antioxidant and anticancer activities and protects PC12 cells from NMDA-induced apoptosis by inhibiting Ca2+ in-flux and modulating gene expression in the Ca2+-CaMKII-CREB signalling pathway.

Tiotropium Bromide hydrate (BA-679 BR hydrate) is a potent anticholinergic and bronchodilator, serving as a muscarinic receptor antagonist, specifically targeting mAChR. It is developed for treating chronic obstructive airways disease (COPD), demonstrating novel and long-lasting effects. Binding studies with [3H]tiotropium bromide in human lung reveal its high potency and equivalent affinity for M1-, M2-, and M3-receptors, making it roughly 10 times more effective than ipratropium bromide. It notably inhibits cholinergic nerve-induced contraction of both guinea-pig and human airways more potently than atropine or ipratropium bromide, albeit with a slower onset. Tiotropium bromide uniquely presents slow dissociation from M3-receptors on airway smooth muscle and rapid dissociation from M2 autoreceptors on cholinergic nerve terminals. As a quaternary ammonium derivative, it shows high affinity and special kinetic selectivity towards muscarinic receptors across M1-, M2-, and M3-subtypes, due to its slower dissociation from M1- and M3-receptors compared to M2-receptors.

Fesoterodine ((R) Fesoterodine) is an orally active, competitive mAChR antagonist with pKi values of 8.0, 7.7, 7.4, 7.3, 7.5 for M1, M2, M3, M4, M5 receptors, respectively. It is used for the overactive bladder (OAB).

(Rac)-5-Hydroxymethyl Tolterodine hydrochloride, also known as (Rac)-Desfesoterodine hydrochloride, is an active metabolite of Tolterodine that functions as a mAChR antagonist. It exhibits significant affinity (K i values) for M1, M2, M3, M4, and M5 receptors, with values of 2.3 nM, 2 nM, 2.5 nM, 2.8 nM, and 2.9 nM, respectively. This compound is commonly employed in research related to overactive bladder conditions.

Pimethixene maleate (Pimetixene maleate) is a potent 5-HT2B receptor antagonist with sedative and antitussive activity.Pimethixene maleate inhibits 5-HT1A, 5-HT2A, 5-HT2B, 5-HT2C, histamine H1, dopamine D2 and D4.4 as well as muscarinic M1 and M2, and can be used in studies of dry and irritant cough in children. irritant cough in children.