Angina

Pranidipine (OPC-13340) is an orally active L-type voltage-dependent calcium channel (L-VDCC) blocker with a K_i value of 0.16 nM. Pranidipine inhibits calcium-induced contraction, suppresses slow-response action potentials, shortens action potential duration, reduces systolic and diastolic blood pressure, and exerts vasodilatory effects. Pranidipine enhances its vasodilatory effect by blocking NO decomposition. Pranidipine can be used in research related to essential hypertension, angina pectoris, myocardial infarction, and dilated cardiomyopathy.

Trapidil (AR-12008) is an orally active vasodilator and antiplatelet agent. Trapidil antagonizes platelet-derived growth factor (PDGF), inhibits phosphodiesterase, thromboxane A₂ synthesis and pro-inflammatory cytokine production. Trapidil promotes prostacyclin biosynthesis, reduces lipid peroxidation, regulates nitric oxide metabolism, and inhibits cell proliferation and migration. Trapidil exerts tissue-protective effects, regulates bone turnover, and inhibits pyroptosis via the GPX3/Nrf2 pathway. Trapidil is applicable to research related to renal ischemia-reperfusion injury, chronic stable angina, restenosis, meningioma, diabetic cardiomyopathy and peripheral nerve crush injury.

Praeruptorin A ((+)-Praeruptorin A) is an orally active isomer of (±)-Praeruptorin A (HY-N0081). Praeruptorin A also acts as a Calcium channel blocker. Praeruptorin A can be isolated from Peucedanum. Praeruptorin A serves as a substrate for CYP3A4. Praeruptorin A downregulates NMDA receptors containing GluN2B and inhibits neuronal Apoptosis. Praeruptorin A mediates vasodilation, inhibits vascular hypertrophy and reduces blood pressure. Praeruptorin A can be used in research related to neurological diseases, myocardial ischemia, heart failure, exertional angina, renovascular hypertension and spontaneous hypertension.

Cetiedil is a vasodilator and potassium channel blocker with anti-sickle cell and analgesic activities. Cetiedil increases cyclic adenosine monophosphate levels, relaxes vascular smooth muscle, and blocks the action of Bradykinin (HY-P0206). Cetiedil inhibits platelet aggregation, reduces plasma fibrinogen concentration and blood viscosity, suppresses sickling of sickle red blood cells and improves their filterability, and decreases irreversible sickle cells. Cetiedil binds to calmodulin, inhibits Ca²⁺-dependent potassium permeability of erythrocyte membranes, increases sodium permeability of erythrocytes, and regulates polymorphonuclear leukocyte function. Cetiedil can be used in research related to intermittent claudication, arteriosclerosis obliterans, diabetic arteriosclerosis, Raynaud's disease, angina pectoris, and sickle cell anemia.

Bromelain USP is an orally active proteolytic agent. Bromelain USP converts plasminogen to plasmin to support fibrinolysis, cleaves CD44 adhesion molecules from cell surfaces, and diminishes uPAR expression and uPA activity. Bromelain USP can inhibit the activity of a variety of fungi and bacteria. Bromelain USP can be used for the research of angina pectoris, atherosclerotic disease, fungal infections, bacterial infections, chronic inflammatory bowel disease, and cancer.

Chromonar hydrochloride (Carbocromen hydrochloride) is an orally active, selective long-acting coronary vasodilator. Chromonar hydrochloride increases coronary blood flow. Chromonar hydrochloride is used for the research of angina pectoris.

(R)-Niguldipine, a R-epimer of Niguldipine (HY-101390B), is a calcium channel antagonist. (R)-Niguldipine exerts a vasodilatory effect by blocking calcium channels and reducing the transmembrane influx of calcium ions. (R)-Niguldipine can inhibit U-46619 (HY-108566)-induced coronary artery contraction in guinea pig Langendorff hearts (pID₅₀ of 9.93), has high affinity for calcium channel binding sites on guinea pig skeletal muscle membranes (K_i of 8.10), and lowers blood pressure in spontaneously hypertensive rats (pED₃₀ of 5.55). (R)-Niguldipine can improve cardiovascular diseases such as hypertension, angina pectoris, and arrhythmias.

Ivabradine sulfate is a potent and orally active HCN (hyperpolarization-activated cyclic nucleotide-gated) channel blocker that inhibits the cardiac pacemaker current (If). Ivabradine sulfate reduces dose-dependently heart rate without modification of blood pressure. Ivabradine sulfate shows anticonvulsant, anti-ischaemic and anti-anginal activity.

Propatyl nitrate is a coronary vasodilator. Propatyl nitrate is also a nitric oxide donor. Propatyl nitrate can be used in research on cardiovascular and cerebrovascular diseases such as acute angina attacks.

N-PTyrosine PA (N-Palmitoyl-tyrosine phosphoric acid) ammonium is a lysophosphatidic acid (LPA) receptor modulator, which exhibits weak inhibitory activity against LPA1 and partial agonist properties towards LPA5. N-PTyrosine PA ammonium inhibits the activation of LPA receptors and downstream responses by competing with agonists for binding sites. N-PTyrosine PA ammonium can induce morphological changes and aggregation, and also inhibit LPA-induced morphological changes through receptor desensitization caused by pre-incubation. N-PTyrosine PA ammonium can be used in the research of related diseases such as atherosclerosis and acute ischemic syndromes (e.g., unstable angina, myocardial infarction, stroke).

(-)-Niguldipine ((R)-Niguldipine) hydrochloride is a calcium channel antagonist. (-)-Niguldipine hydrochloride exerts a vasodilatory effect by blocking calcium channels and reducing the transmembrane influx of calcium ions. (-)-Niguldipine can inhibit U-46619 (HY-108566)-induced coronary artery contraction in guinea pig Langendorff hearts (pID₅₀ of 9.93), has high affinity for calcium channel binding sites on guinea pig skeletal muscle membranes (K_i of 8.10), and lowers blood pressure in spontaneously hypertensive rats (pED₃₀ of 5.55). (-)-Niguldipine hydrochloride can improve cardiovascular diseases such as hypertension, angina pectoris, and arrhythmias.

Fenalcomine is an orally active phenethylamine derivative with antianginal activity. Fenalcomine reduces myocardial oxygen consumption, and increases cardiac output and coronary blood flow. Fenalcomine is suitable for angina models complicated by hypertension, diabetes, and old myocardial infarction. Fenalcomine can be used in studies related to angina pectoris.

Fenalcomine hydrochloride is an orally active phenethylamine derivative with antianginal activity. Fenalcomine hydrochloride reduces myocardial oxygen consumption, and increases cardiac output and coronary blood flow. Fenalcomine hydrochloride is suitable for angina models complicated by hypertension, diabetes, and old myocardial infarction. Fenalcomine hydrochloride can be used in studies related to angina pectoris.

SQ 32547 is a dihydropyridine calcium channel inhibitor with antihypertensive and anti-ischemic activities. SQ 32547 modulates sarcolemmal voltage-dependent calcium channels to inhibit calcium influx, and exerts direct anti-ischemic activity by suppressing myocardial contracture formation and reducing lactate dehydrogenase (LDH) release. SQ 32547 can be used in research related to hypertension, angina pectoris and neurogenic inflammation.