NCBI Taxonomy: 1501461

Tetrahydropalmatine

C21H25NO4 (355.178349)

Tetrahydropalmatine is a berberine alkaloid obtained by formal addition of two molecules of hydrogen to the pyridine ring of palmatine. It has a role as an adrenergic agent, a non-narcotic analgesic and a dopaminergic antagonist. It is a berberine alkaloid, an organic heterotetracyclic compound and an an (S)-7,8,13,14-tetrahydroprotoberberine. It is functionally related to a palmatine. Tetrahydropalmatine is under investigation in clinical trial NCT02118610 (Treatment of Schizophrenia With L-tetrahydropalmatine (l-THP): a Novel Dopamine Antagonist With Anti-inflammatory and Antiprotozoal Activity). Tetrahydropalmatine is a natural product found in Corydalis heterocarpa, Ceratocapnos heterocarpa, and other organisms with data available. A berberine alkaloid obtained by formal addition of two molecules of hydrogen to the pyridine ring of palmatine. Tetrahydropalmatine (THP) is an isoquinoline alkaloid found in several different plant species, mainly in the genus Corydalis (Yan Hu Suo),[1][2] but also in other plants such as Stephania rotunda.[3] These plants have traditional uses in Chinese herbal medicine. The pharmaceutical industry has synthetically produced the more potent enantiomer Levo-tetrahydropalmatine (Levo-THP), which has been marketed worldwide under different brand names as an alternative to anxiolytic and sedative drugs of the benzodiazepine group and analgesics such as opiates. It is also sold as a dietary supplement. In 1940, a Vietnamese scientist Sang Dinh Bui extracted an alkaloid from the root of Stephania rotunda with the yield of 1.2–1.5\\\\\\\% and he named this compound rotundine. From 1950 to 1952, two Indian scientists studied and extracted from Stephania glabra another alkaloid named hyndanrine. In 1965, the structure of rotundine and hyndarin was proved to be the same as tetrahydropalmatine. Tetrahydropalmatine has been demonstrated to possess analgesic effects and may be beneficial in the treatment of heart disease and liver damage.[5][6] It is a blocker of voltage-activated L-type calcium channel active potassium channels.[citation needed] It is a potent muscle relaxant.[citation needed] It has also shown potential in the treatment of drug addiction to both cocaine and opiates, and preliminary human studies have shown promising results.[7][8][9] The pharmacological profile of l-THP includes antagonism of dopamine D1, and D2 receptors as well as actions at dopamine D3, alpha adrenergic and serotonin receptors. The Ki values for l-THP at D1 and D2 dopamine receptors are approximately 124 nM (D1) and 388 nM (D2). In addition to the antagonism of post-synaptic dopamine receptors, the blockade of pre-synaptic autoreceptors by l-THP results in increased dopamine release, and it has been suggested that lower affinity of l-THP for D2 receptors may confer some degree of autoreceptor selectivity. Along with dopamine receptors, l-THP has been reported to interact with a number of other receptor types, including alpha-1 adrenergic receptors, at which it functions as an antagonist, and GABA-A receptors, through positive allosteric modulation. Additionally, l-THP displays significant binding to 5-HT1A and alpha-2 adrenergic receptors. In the case of 5-HT1A receptors, l-THP binds with a Ki of approximately 340 nM.[10] Animal experiments have shown that the sedative effect of THP results from blocking dopaminergic neurons in the brain. Dopamine is an important neurotransmitter in the central nervous system where it occurs in several important signaling systems that regulate muscular activity and attention, as well as feelings of joy, enthusiasm, and creativity. Therefore, THP causes no feelings of euphoria, and has been seen as an alternative to addictive drugs for people suffering from anxiety and pain, and as a possibility for relief for people not helped by existing drugs.[citation needed] Several cases of poisoning related to THP have been reported.[11] These cases involved negative effects on respiration, cardiac activity, and the nervous system. In addition, chronic hepatitis has been reported, caused by THP production in East Asia under conditions that were insufficiently sterile. Fatalities started to be reported in 1999 in cases where THP had been used in combination with other drugs having analgesic and anti-anxiety effects. All 1999 deaths could be tied to a single THP-based supplement, sold under the name "Jin Bu Huan Anodyne Tablets". Toxicity with even Jin Bu Huan has been reported.[12] This product was therefore blacklisted by US and European health authorities. In some other countries, such as Singapore, THP is treated as a controlled substance, and license is required to sell it.[citation needed] Rotundine is an antagonist of dopamine D1, D2 and D3 receptors with IC50s of 166 nM, 1.4 μM and 3.3 μM, respectively. Rotundine is also an antagonist of 5-HT1A with an IC50 of 370 nM. Rotundine is an antagonist of dopamine D1, D2 and D3 receptors with IC50s of 166 nM, 1.4 μM and 3.3 μM, respectively. Rotundine is also an antagonist of 5-HT1A with an IC50 of 370 nM. Rotundine is an antagonist of dopamine D1, D2 and D3 receptors with IC50s of 166 nM, 1.4 μM and 3.3 μM, respectively. Rotundine is also an antagonist of 5-HT1A with an IC50 of 370 nM. Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1]. Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1]. Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1].

Cepharanthine

C37H38N2O6 (606.2729727999999)

Cepharanthine is a bisbenzylisoquinoline alkaloid from tubers of Stephania; stimulates recovery of immunologic function in lymphatic system after administration of antineoplastic agents or x-irradiation. It is a member of isoquinolines and a bisbenzylisoquinoline alkaloid. Cepharanthine is a natural product found in Stephania sinica, Stephania cephalantha, and other organisms with data available. A bisbenzylisoquinoline alkaloid from tubers of Stephania; stimulates recovery of immunologic function in lymphatic system after administration of antineoplastic agents or x-irradiation. C78272 - Agent Affecting Nervous System > C241 - Analgesic Agent > C2198 - Nonnarcotic Analgesic COVID info from clinicaltrial, clinicaltrials, clinical trial, clinical trials D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D020011 - Protective Agents > D011837 - Radiation-Protective Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000893 - Anti-Inflammatory Agents D000970 - Antineoplastic Agents D018501 - Antirheumatic Agents Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS Origin: Plant; SubCategory_DNP: Isoquinoline alkaloids, Benzylisoquinoline alkaloids Cepharanthine is a natural product that can be isolated from the plant Stephania?cephalantha?Hayata. Cepharanthine has anti-severe acute respiratory syndrome coronavirus 2 (anti-SARS-CoV-2) activities. Cepharanthine has good effective in suppressing viral proliferation (half maximal (50\\%) inhibitory concentration (IC50) and 90\\% inhibitory concentration (IC90) values of 1.90 and 4.46?μM[1]. Cepharanthine can also effectively reverses P-gp-mediated multidrug resistance in K562 cells and increase enhances the sensitivity of anticancer agents in xenograft mice model[2][3]. Cepharanthine shows inhibitory effects of human liver cytochrome P450 enzymes CYP3A4, CYP2E1 and CYP2C9. Cepharanthine has antitumor, anti-inflammatory and antinociceptive effects[4][5][6][7][8]. Cepharanthine is a natural product that can be isolated from the plant Stephania?cephalantha?Hayata. Cepharanthine has anti-severe acute respiratory syndrome coronavirus 2 (anti-SARS-CoV-2) activities. Cepharanthine has good effective in suppressing viral proliferation (half maximal (50\%) inhibitory concentration (IC50) and 90\% inhibitory concentration (IC90) values of 1.90 and 4.46?μM[1]. Cepharanthine can also effectively reverses P-gp-mediated multidrug resistance in K562 cells and increase enhances the sensitivity of anticancer agents in xenograft mice model[2][3]. Cepharanthine shows inhibitory effects of human liver cytochrome P450 enzymes CYP3A4, CYP2E1 and CYP2C9. Cepharanthine has antitumor, anti-inflammatory and antinociceptive effects[4][5][6][7][8].

Salutaridine

C19H21NO4 (327.14705060000006)

Salutaridine is a morphinane alkaloid from the opium poppy, in which the 5,6,8,14-tetradehydromorphinan-7-one skeleton is substituted at position 4 by a hydroxyl group, positions 3 and 6 by methoxy groups and position N17 by a methyl group. An intermediate in the biosynthesis of narcotic analgesics such as morphine and codeine. It has a role as a metabolite and an anti-HBV agent. It is a conjugate base of a salutaridinium(1+). It derives from a hydride of a morphinan. Salutaridine is a natural product found in Sarcocapnos saetabensis, Platycapnos saxicola, and other organisms with data available. A morphinane alkaloid from the opium poppy, in which the 5,6,8,14-tetradehydromorphinan-7-one skeleton is substituted at position 4 by a hydroxyl group, positions 3 and 6 by methoxy groups and position N17 by a methyl group. An intermediate in the biosynthesis of narcotic analgesics such as morphine and codeine. D002492 - Central Nervous System Depressants > D009294 - Narcotics > D053610 - Opiate Alkaloids

Dicentrine

C20H21NO4 (339.14705060000006)

Dicentrine is an aporphine alkaloid. Dicentrine is a natural product found in Cissampelos pareira, Stephania abyssinica, and other organisms with data available. Dicentrine is an anticancer compound isolated from Lindera, a species of flowering plants. Dicentrine is a natural product isolated from the plant Stephania epigaea Lo with antihypertensive effect. Dicentrine is an α1-adrenoceptor antagonist which has effective against human hyperplastic prostates[1].

Isobebeerin

C36H38N2O6 (594.2729727999999)

Isochondrodendrine is a member of isoquinolines and a bisbenzylisoquinoline alkaloid. Isochondrodendrine is a natural product found in Cissampelos pareira, Stephania elegans, and other organisms with data available.

Cycleanine

C38H42N2O6 (622.3042712000001)

Cycleanine is a potent vascular selective Calcium antagonist. Cycleanine has analgesic, muscle relaxant and anti-inflammatory activities. Cycleanine has potential for anti-ovarian cancer acting through the apoptosis pathway[1][2]. Cycleanine is a potent vascular selective Calcium antagonist. Cycleanine has analgesic, muscle relaxant and anti-inflammatory activities. Cycleanine has potential for anti-ovarian cancer acting through the apoptosis pathway[1][2].

(+/-)-Dicentrine

C20H21NO4 (339.14705060000006)

(s)-dicentrine is a member of the class of compounds known as aporphines. Aporphines are quinoline alkaloids containing the dibenzo[de,g]quinoline ring system or a dehydrogenated derivative thereof (s)-dicentrine is practically insoluble (in water) and a very strong basic compound (based on its pKa). (s)-dicentrine can be found in barley, which makes (s)-dicentrine a potential biomarker for the consumption of this food product. Dicentrine is a natural product isolated from the plant Stephania epigaea Lo with antihypertensive effect. Dicentrine is an α1-adrenoceptor antagonist which has effective against human hyperplastic prostates[1].

(-)-Stephanine; (R)-(-)-Stephanine; 8-Methoxy-1,2-(methylenedioxy)-6abeta-aporphine; Stephanin; l-Stephanine

C19H19NO3 (309.13648639999997)

rotundine

C21H25NO4 (355.178349)

D002492 - Central Nervous System Depressants > D014149 - Tranquilizing Agents > D014150 - Antipsychotic Agents D002491 - Central Nervous System Agents > D011619 - Psychotropic Drugs > D014149 - Tranquilizing Agents D018377 - Neurotransmitter Agents > D015259 - Dopamine Agents > D018492 - Dopamine Antagonists D002491 - Central Nervous System Agents > D002492 - Central Nervous System Depressants D018373 - Peripheral Nervous System Agents > D018689 - Sensory System Agents D002317 - Cardiovascular Agents > D002121 - Calcium Channel Blockers D002317 - Cardiovascular Agents > D000959 - Antihypertensive Agents D002317 - Cardiovascular Agents > D000889 - Anti-Arrhythmia Agents D018377 - Neurotransmitter Agents > D018663 - Adrenergic Agents D002491 - Central Nervous System Agents > D000700 - Analgesics D000077264 - Calcium-Regulating Hormones and Agents D049990 - Membrane Transport Modulators Origin: Plant; SubCategory_DNP: Isoquinoline alkaloids, Benzylisoquinoline alkaloids Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1]. Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1]. Tetrahydropalmatine possesses analgesic effects. Tetrahydropalmatine acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats[1].