ca-1

CA IX-IN-1 (compound 12g) is a potent and highly selective hCA IX inhibitor (IC50: 7 nM) with demonstrated antitumour effects.

CA inhibitor 1 (GS-6207 analog) is a potent inhibitor of the HIV capsid.

Fasudil hydrochloride (HA-1077) is a potent inhibitor of ROCK1, PKA, PKC, and MLCK with Ki of 0.33 μM, 1.0 μM, 9.3 μM and 55 μM, respectively.

Verapamil hydrochloride (Verapamil HCl) is a calcium channel blocker that is a class IV anti-arrhythmia agent.

1-Octanol, a saturated fatty alcohol, functions as an inhibitor of T-type calcium channels (T-channels), showing an inhibitory concentration (IC50) of 4 μM for native T-currents[1]. Additionally, 1-Octanol is recognized for its potential as a biofuel, possessing diesel-like properties[2].

I-XW-053 is a micromolar affinity inhibitor of capsid-targeted HIV-1 replication, utilizing a hybrid structure-based method to block the interface between CA N-terminal domains (NTD-NTD interface).

Verapamil (CP-16533-1) is a calcium channel blocker and an orally active and effective inhibitor of P-gp. Verapamil inhibits CYP3A4 and can be used in studies about the treatment of high blood pressure, heart arrhythmias, and angina research.

4-(benzyloxy)benzene-1-sulfonamide is inhibitor of human recombinant CA-7.

Fasudil (HA-1077) is a potent inhibitor of ROCK1, PKA, PKC, and MLCK.

NLRP3-IN-NBC6 is a potent, selective NLRP3 inflammasome inhibitor with an IC50 of 574 nM. It acts independently of Ca 2+ and inhibits Nigericin-induced inflammasome activation in THP-1 cells, as well as Imiquimod-induced IL-1β release from LPS-primed bone marrow-derived macrophages (BMDMs) [1].

Halofuginone specifically inhibits collagen type I gene expression and matrix metalloproteinase 2 (MMP-2) gene expression, which may result in the suppression of angiogenesis, tumor stromal cell development, and tumor cell growth. Halofuginone Hydrobromide is the hydrobromide salt of halofuginone, a semisynthetic quinazolinone alkaloid anticoccidial derived from the plant Dichroa febrifuga, with antifibrotic and potential antineoplastic activities. These effects appear to be due to halofuginone-mediated inhibition of the collagen type I and MMP-2 promoters. Collagen type I and MMP-2 play important roles in fibroproliferative diseases.

1. β-Anhydroicaritin exhibits immunosuppressive effect on the mouse macrophages stimulated by LPS. 2. β-Anhydroicaritin phytosomes can inhibit enhanced bone turnover induced by ovariectomy, improve BMD the biomechanical properties of vertebrae, without any stimulation on uterus. 3. β-Anhydroicaritin possesses significant protective effects on the zymosan-induced peritonitis mice, which might be associated with the regulation of Ca(2+); influx in macrophages and iNOS expression.

1. Cornuside (Comuside) has immunomodulatory activity . 2. Cornuside suppresses expression levels of cytokine-induced proinflammatory and adhesion molecules in the human endothelial cells. 3. Cornuside can treat myocardial I R and protect the liver from CCl4-induced acute hepatotoxicity, by reducing oxidative stress and suppressing inflammatory responses. 4. Cornuside has anti-inflammatory activity by downregulations of iNOS and COX-2 due to NF-κB inhibition as well as the negative regulation of ERK1 2, p38, and JNK1 2 phosphorylations in RAW 264.7 cells. 5. Cornuside has protective potential against cerebral ischemic injury, may be due to the suppression of intracellular Ca(2+) elevation and caspase-3 activity, and improvements in mitochondrial energy metabolism and antioxidant properties.

Ziconotide Acetate (107452-89-1 free base) (Prialt) is an analgesic agent and has been used to treat neuropathic and non-neuropathic pain. Ziconotide Acetate (107452-89-1 free base) acts by binding to N-type calcium channels situated on the terminal part of primary afferent neurons of the nociceptive pathway therefore reducing synaptic transmission with potent antinociceptive effects.

Helichrysetin has mild anti-HIV-1 PR activity. Helichrysetin has great potentials for development as an anticancer agent, it has cytotoxic effect on four selected cancer cell lines, A549, MCF-7, Ca Ski, and HT-29.

PF-3450074 (PF-74) acts at an early stage of HIV-1 infection inhibits viral replication by directly competing with the binding of CPSF6 (nuclear host factors cleavage and polyadenylation specific factor 6) and NUP153 (nucleoporin 153), and blocks the uncoating, assembly, and the reverse transcription steps of the viral life cycle. PF-3450074 is a specifical inhibitor of HIV-1 capsid protein (CA) and shows a broad-spectrum inhibition of HIV isolates with submicromolar potency (EC50=8-640 nM).

IRAK4-IN-7 (CA-4948) is a selective and potent IRAK4 kinase inhibitor with in vivo activity in a TLR4-induced cytokine release model.

Norverapamil hydrochloride (D591 hydrochloride) ((±)-Norverapamil hydrochloride) is an N-demethylated metabolite of Verapamil and it is an L-type calcium channel blocker and a P-glycoprotein (P-gp) function inhibitor.

Cav 2.2 blocker 1 is an N-type calcium channel (Cav 2.2; IC50: 1 nM) blocker for the treatment of pain.

HS-243 is an inhibitor of IRAK-4 and IRAK-1 with IC50s of 20 and 24 nM. HS-243 shows anti-inflammatory and anticancer activity.

Ca2+ channel agonist 1 is an agonist of N-type Ca2+ channel and an inhibitor of Cdk2 (EC50s: 14.23 μM and 3.34 μM) and is used as a potential treatment for motor nerve terminal dysfunction.

Barnidipine (YM-09730-5(Free base)) is a calcium channel blocker.

Almorexant (ACT 078573) is a potent and competitive dual orexin 1 receptor (OX1) orexin 2 receptor (OX2) antagonist with Ki values of 1.3 and 0.17 nM for OX1 and OX2, respectively.

PACOCF3 (Palmityltrifluoromethylketone) (Palmityltrifluoromet hylketone) is an inhibitor of Ca(2+)-independent phospholipase A2(PLA2) with an IC 50 of 3.8 μM. PACOCF3 alters Ca 2+ signaling in renal tubular cells [1] [2].

SERCA2a activator 1 is a sarco/endoplasmic reticulum Ca2+-dependent ATPase 2a activator. SERCA2a activator 1 decreases phospholamban inhibition and enhances the systolic and diastolic functions of the heart.

Cerebroside A, a single molecule cerebroside extracted and isolated from an edible mushroom, provides potent neuroprotection after cerebral ischemia by reducing glutamate release and Ca²⁺ influx of NMDA receptors [1].

Emavusertib (CA-4948) hydrochloride, a selective and potent IRAK4 FLT3 inhibitor, is designed for oral administration. It achieves an IC 50 of 57 nM against IRAK4 in a FRET kinase assay and demonstrates anti-tumor activity [1] [2] [3].

Cav 3.2 Inhibitor 4 (Compound 21) is a selective and potent inhibitor of the T-type calcium channel (Ca v 3.2), demonstrating peripheral restriction with an IC50 value of 0.6 μM. It is utilized in atrial fibrillation research [1].

LY393615 (NCC1048) is a novel blocker of both neuronal Ca²⁺ (calcium) and Na⁺ (sodium) channels, exhibiting half-maximal inhibitory concentrations (IC₅₀) of 1.9 µM and 5.2 µM against α1A and α1B calcium channel subunits, respectively. This compound demonstrates effective brain penetration and has shown neuroprotective effects in cerebral ischemia models, suggesting its utility in neurological disease research [1].

Compound 1e, also known as ALP/Carbonic anhydrase-IN-1, is a dual inhibitor targeting both carbonic anhydrase (CA) isozymes II, IX, and XII, as well as alkaline phosphatase (ALP). It exhibits inhibitory IC50 values of 0.44 µM for CA-II, 1.61 µM for CA-IX, 0.51 µM for CA-XII, and 0.107 µM for ALP [1].

CAII-IN-1 (compound 3n) is a thiosemicarbazide derivative that acts as a potent and selective inhibitor of carbonic anhydrase-II (CA-II), with an IC50 value of 10.3 μM for bovine CA-II. This compound (CAII-IN-1) is useful in research on carbonic anhydrase-associated biological disorders [1].

Cavα2δ1&NET-IN-1 inhibits Ca(v)α2δ-1 with a K(i) of 112 nM and inhibits NET with a K(i) of 383 nM and IC(50) of 67 nM. Cavα2δ1&NET-IN-1 can be used for research on pain.

CAII-IN-3 (compound 3h) is a thiosemicarbazone derivative that potently inhibits carbonic anhydrase-II (CA-II), exhibiting an IC50 value of 13.4 μM [1].

O-desmethyl Brinzolamide is an active metabolite of the carbonic anhydrase (CA) inhibitor brinzolamide .1,2It inhibits CAII and CAIV (IC50s = 0.136 and 165 nM, respectively).1 1.Huang, Q., Rui, E.Y., Cobbs, M., et al.Design, synthesis, and evaluation of NO-donor containing carbonic anhydrase inhibitors to lower intraocular pressureJ. Med. Chem.58(6)2821-2833(2015) 2.Lo Faro, A.F., Tini, A., Gottardi, M., et al.Development and validation of a fast ultra-high-performance liquid chromatography tandem mass spectrometry method for determining carbonic anhydrase inhibitors and their metabolites in urine and hairDrug Test Anal.13(8)1552-1560(2021)

CAXII-IN-1 (Compound 17) is a selective inhibitor of CA XII with antitumor activity, exhibiting Ki values of 3.8 nM for hCA XII and 56.0 nM for hCA IX [1].

PD-1-IN-1 is a programmed cell dealth-1inhibitor. PD-1-IN-1 can be used as an immune modulator.

1-Hydroxy-2,3,5-trimethoxyxanthone (HM-1) exhibits vasodilator action through an endothelium-dependent mechanism involving NO and an endothelium-independent mechanism by inhibiting Ca(2+) influx via L-type voltage-operated Ca(2+) channels. A minor contribution to HM-1's effects may stem from inhibiting protein kinase C-mediated release of intracellular Ca(2+) stores. At 1 µg mL, HM-1 effectively inhibits osteoclast differentiation in co-cultures with mouse osteoblastic calvarial and bone marrow cells and protects mice from acute lung injury induced by lipopolysaccharide (LPS), likely by increasing IκB-α protein expression and suppressing inducible nitric oxide synthase and cyclooxygenase-Ⅱ protein expression.

Tamapin TFA, a venom peptide isolated from the Indian red scorpion (Mesobuthus tamulus) [1], selectively targets and blocks small conductance Ca(2+)-activated K(+) (SK) channels, particularly the SK2 subtype (Potassium Channel). It is known to inhibit SK channel-mediated currents in the hippocampal pyramidal neurons.

Bevirimat (PA-457) is a first-in-class inhibitor of HIV-1 maturation, blocking the cleavage of the Gag capsid (CA) precursor, CA-SPI, to mature CA protein during virion maturation.

O-Desmethyl Brinzolamide hydrochloride (compound 6a), a potent metabolite derived from Brinzolamide, serves as a carbonic anhydrase (CA) inhibitor. It exhibits a dissociation constant (Kd) of 0.136 nM for CA II and an inhibitory concentration (IC50) of 165 nM for CA IV [1].

Zonisamide-13C2,15N is intended for use as an internal standard for the quantification of zonisamide by GC- or LC-MS. Zonisamide is an antiepileptic agent.1 It selectively inhibits the repeated firing of sodium channels (IC50 = 2 μg/ml) in mouse embryo spinal cord neurons and inhibits spontaneous channel firing when used at concentrations greater than 10 μg/ml.2 In rat cerebral cortex neurons, zonisamide (1-1,000 μM) inhibits T-type calcium channels with a maximum reduction of 60% of the calcium current.3 Zonisamide inhibits H. pylori recombinant carbonic anhydrase (CA) and the human CA isoforms I, II, and V with Ki values of 218, 56, 35, and 21 nM, respectively.4,5 In mice, it has anticonvulsant activity against maximal electroshock seizure (MES) and pentylenetetrazole-induced maximal, but not minimal, seizures (ED50s = 19.6, 9.3, and >500 mg/kg, respectively). Zonisamide (40 mg/kg, p.o.) prevents MPTP-induced decreases in the levels of dopamine , but not homovanillic acid or dihydroxyphenyl acetic acid , and increases MPTP-induced decreases in the dopamine turnover rate in mouse striatum in a model of Parkinson's disease.6 Formulations containing zonisamide have been used in the treatment of partial seizures in adults with epilepsy. |1. Masuda, Y., Ishizaki, M., and Shimizu, M. Zonisamide: Pharmacology and clinical efficacy in epilepsy. CNS Drug Rev. 4(4), 341-360 (1998).|2. Rock, D.M., Macdonald, R.L., and Taylor, C.P. Blockade of sustained repetitive action potentials in cultured spinal cord neurons by zonisamide (AD 810, CI 912), a novel anticonvulsant. Epilepsy Res. 3(2), 138-143 (1989).|3. Suzuki, S., Kawakami, K., Nishimura, S., et al. Zonisamide blocks T-type calcium channel in cultured neurons of rat cerebral cortex. Epilepsy Res. 12(1), 21-27 (1992).|4. Nishimori, I., Vullo, D., Minakuchi, T., et al. Carbonic anhydrase inhibitors: Cloning and sulfonamide inhibition studies of a carboxyterminal truncated α-carbonic anhydrase from Helicobacter pylori. Bioorg. Med. Chem. Lett. 16(8), 2182-2188 (2006).|5. De Simone, G., Di Fiore, A., Menchise, V., et al. Carbonic anhydrase inhibitors. Zonisamide is an effective inhibitor of the cytosolic isozyme II and mitochondrial isozyme V: Solution and X-ray crystallographic studies. Bioorg. Med. Chem. Lett. 15(9), 2315-2320 (2005).|6. Yabe, H., Choudhury, M.E., Kubo, M., et al. Zonisamide increases dopamine turnover in the striatum of mice and common marmosets treated with MPTP. J. Pharmacol. Sci. 110(1), 64-68 (2009).

Thio-NADP (S-NADP) functions as an inhibitor of nicotinic acid adenine dinucleotide phosphate (NAADP) and induces partial Ca 2+ release [1].

NP118809 (39-1B4) is a potent N-type calcium channel blocker(IC50 : 0.11 μM).

CVN417 is an orally active antagonist of nAChR containing the α6 subunit, modulating phasic dopaminergic neurotransmission in an impulse-dependent fashion. It inhibits Ca(2+) efflux through nAChR subunits, displaying IC50 values of 0.086 μM (α6), 2.56 μM (α3), and 0.657 μM (α4). CVN417 has shown efficacy in reducing resting tremor in rodent models, suggesting a potential to ameliorate movement disorders in conditions like Parkinson's disease [1].

Cavα2δ1&NET-IN-2 inhibits Ca v α2δ-1 with a K i of 454 nM and NET with a K i of 59 nM and IC 50 of 7 nM. Cavα2δ1&NET-IN-2 can be used for research of pain.

Enpp/Carbonic anhydrase-IN-2 is a potent Enpp and carbonic anhydrase inhibitor with IC 50 s of 1.13, 1.07, 0.74, 0.33, 0.68 for NPP1, NPP2, NPP3, CA-IX, CA-XII respectively. Enpp/Carbonic anhydrase-IN-2 shows antiproliferative activity for cancer cells and low cytotoxic against normal cells. Enpp/Carbonic anhydrase-IN-2 induces Apoptosis .

GK563, a selective Ca 2+-independent phospholipase A2 (GVIA iPLA2) inhibitor, exhibits a potent IC50 value of 1 nM and demonstrates 22,000-fold greater activity against GVIA iPLA2 compared to GIVA cPLA2. Its efficacy in reducing β-cell apoptosis triggered by proinflammatory cytokines suggests potential therapeutic benefits in combating autoimmune disorders, including type 1 diabetes.

hCAIX XII-IN-5 (Coumarin 9a) is an inhibitor of carbonic anhydrase (CA) with excellent selectivity for hCA IX XII, displaying Kis of 93.3 nM and 85.7 nM over hCA I and hCA II, respectively. It exhibits anti-proliferative activities in cancer cells, delaying the cell cycle and inducing apoptosis [1].

Zonisamide (AD 810), a sulfonamide anticonvulsant, is approved for use as an adjunctive treatment in adults with partial-onset seizures. It may inhibit a carbonic anhydrase although this is not one of the main mechanisms of action. Zonisamide may act by blocking repetitive firing of voltage-gated sodium channels results in a reduction of T-type calcium channel currents, or by binding allosterically to GABA receptors. This latter action may lower the uptake of the inhibitory neurotransmitter GABA while increasing the uptake of the excitatory neurotransmitter glutamate.

Zonisamide sodium is a 1,2 benzisoxazole derivative. It is the first agent of this chemical class to be developed as an antiepileptic drug.