NCBI Taxonomy: 205465
Tripterygium hypoglaucum (ncbi_taxid: 205465)
found 207 associated metabolites at species taxonomy rank level.
Ancestor: Tripterygium
Child Taxonomies: none taxonomy data.
Fumaric acid
Fumaric acid appears as a colorless crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Combustible, though may be difficult to ignite. Used to make paints and plastics, in food processing and preservation, and for other uses. Fumaric acid is a butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle. It has a role as a food acidity regulator, a fundamental metabolite and a geroprotector. It is a conjugate acid of a fumarate(1-). Fumaric acid is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Fumaric acid is a precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase. Fumarate is converted by fumarase to malate. A fumarate is a salt or ester of the organic compound fumaric acid, a dicarboxylic acid. Fumarate has recently been recognized as an oncometabolite. (A15199). As a food additive, fumaric acid is used to impart a tart taste to processed foods. It is also used as an antifungal agent in boxed foods such as cake mixes and flours, as well as tortillas. Fumaric acid is also added to bread to increase the porosity of the final baked product. It is used to impart a sour taste to sourdough and rye bread. In cake mixes, it is used to maintain a low pH and prevent clumping of the flours used in the mix. In fruit drinks, fumaric acid is used to maintain a low pH which, in turn, helps to stabilize flavor and color. Fumaric acid also prevents the growth of E. coli in beverages when used in combination with sodium benzoate. When added to wines, fumaric acid helps to prevent further fermentation and yet maintain low pH and eliminate traces of metallic elements. In this fashion, it helps to stabilize the taste of wine. Fumaric acid can also be added to dairy products, sports drinks, jams, jellies and candies. Fumaric acid helps to break down bonds between gluten proteins in wheat and helps to create a more pliable dough. Fumaric acid is used in paper sizing, printer toner, and polyester resin for making molded walls. Fumaric acid is a dicarboxylic acid. It is a precursor to L-malate in the Krebs tricarboxylic acid (TCA) cycle. It is formed by the oxidation of succinic acid by succinate dehydrogenase. Fumarate is converted by the enzyme fumarase to malate. Fumaric acid has recently been identified as an oncometabolite or an endogenous, cancer causing metabolite. High levels of this organic acid can be found in tumors or biofluids surrounding tumors. Its oncogenic action appears to due to its ability to inhibit prolyl hydroxylase-containing enzymes. In many tumours, oxygen availability becomes limited (hypoxia) very quickly due to rapid cell proliferation and limited blood vessel growth. The major regulator of the response to hypoxia is the HIF transcription factor (HIF-alpha). Under normal oxygen levels, protein levels of HIF-alpha are very low due to constant degradation, mediated by a series of post-translational modification events catalyzed by the prolyl hydroxylase domain-containing enzymes PHD1, 2 and 3, (also known as EglN2, 1 and 3) that hydroxylate HIF-alpha and lead to its degradation. All three of the PHD enzymes are inhibited by fumarate. Fumaric acid is found to be associated with fumarase deficiency, which is an inborn error of metabolism. It is also a metabolite of Aspergillus. Produced industrially by fermentation of Rhizopus nigricans, or manufactured by catalytic or thermal isomerisation of maleic anhydride or maleic acid. Used as an antioxidant, acidulant, leavening agent and flavouring agent in foods. Present in raw lean fish. Dietary supplement. Used in powdered products since fumaric acid is less hygroscopic than other acids. A precursor to L-malate in the Krebs tricarboxylic acid cycle. It is formed by the oxidation of succinate by succinate dehydrogenase (wikipedia). Fumaric acid is also found in garden tomato, papaya, wild celery, and star fruit. Fumaric acid. CAS Common Chemistry. CAS, a division of the American Chemical Society, n.d. https://commonchemistry.cas.org/detail?cas_rn=110-17-8 (retrieved 2024-07-01) (CAS RN: 110-17-8). Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0). Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite. Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite.
Triptolide
Triptolide is an organic heteroheptacyclic compound, an epoxide, a gamma-lactam and a diterpenoid. It has a role as an antispermatogenic agent and a plant metabolite. Triptolide has been used in trials studying the treatment of HIV, Crohns Disease, Intestinal Diseases, Gastrointestinal Diseases, and Digestive System Diseases, among others. Triptolide is a natural product found in Tripterygium hypoglaucum, Celastraceae, and other organisms with data available. D012102 - Reproductive Control Agents > D003270 - Contraceptive Agents D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D000988 - Antispermatogenic Agents D009676 - Noxae > D000477 - Alkylating Agents D000970 - Antineoplastic Agents Triptolide is a diterpenoid triepoxide extracted from the root of Tripterygium wilfordii with immunosuppressive, anti-inflammatory, antiproliferative and antitumour effects. Triptolide is a NF-κB activation inhibitor[1][2][3][4][5][6]. Triptolide is a diterpenoid triepoxide extracted from the root of Tripterygium wilfordii with immunosuppressive, anti-inflammatory, antiproliferative and antitumour effects. Triptolide is a NF-κB activation inhibitor[1][2][3][4][5][6].
Friedelin
Friedelin is a pentacyclic triterpenoid that is perhydropicene which is substituted by an oxo group at position 3 and by methyl groups at the 4, 4a, 6b, 8a, 11, 11, 12b, and 14a-positions (the 4R,4aS,6aS,6bR,8aR,12aR,12bS,14aS,14bS-enantiomer). It is the major triterpenoid constituent of cork. It has a role as an anti-inflammatory drug, a non-narcotic analgesic, an antipyretic and a plant metabolite. It is a pentacyclic triterpenoid and a cyclic terpene ketone. Friedelin is a natural product found in Diospyros eriantha, Salacia chinensis, and other organisms with data available. A pentacyclic triterpenoid that is perhydropicene which is substituted by an oxo group at position 3 and by methyl groups at the 4, 4a, 6b, 8a, 11, 11, 12b, and 14a-positions (the 4R,4aS,6aS,6bR,8aR,12aR,12bS,14aS,14bS-enantiomer). It is the major triterpenoid constituent of cork. Friedelin is a member of the class of compounds known as triterpenoids. Triterpenoids are terpene molecules containing six isoprene units. Friedelin is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Friedelin can be found in a number of food items such as pomegranate, sugar apple, apple, and mammee apple, which makes friedelin a potential biomarker for the consumption of these food products. Friedelin is a triterpenoid chemical compound found in Azima tetracantha, Orostachys japonica, and Quercus stenophylla. Friedelin is also found in the roots of the Cannabis plant .
Acetyl oleanolic acid
3-O-Acetyloleanolic acid is a natural product found in Diospyros eriantha, Mussaenda macrophylla, and other organisms with data available.
beta-Sitosterol 3-O-beta-D-galactopyranoside
Daucosterol is a steroid saponin that is sitosterol attached to a beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. It has bee isolated from Panax japonicus var. major and Breynia fruticosa. It has a role as a plant metabolite. It is a steroid saponin, a beta-D-glucoside and a monosaccharide derivative. It is functionally related to a sitosterol. It derives from a hydride of a stigmastane. Sitogluside is a natural product found in Ophiopogon intermedius, Ophiopogon jaburan, and other organisms with data available. beta-Sitosterol 3-O-beta-D-galactopyranoside is found in herbs and spices. beta-Sitosterol 3-O-beta-D-galactopyranoside is a constituent of Hibiscus sabdariffa (roselle) leaves. C308 - Immunotherapeutic Agent Daucosterol is a natural sterol compound. Daucosterol is a natural sterol compound.
Wilfordine
Wilfordine is a sesquiterpenoid. Wilfordine is a natural product found in Tripterygium hypoglaucum, Tripterygium wilfordii, and Tripterygium forrestii with data available.
Celastrol
Celastrol, a plant-derived triterpene, has antioxidant and anti-inflammatory activity that may prevent neuronal degeneration in Alzheimers disease (AD). In the brains of patients with AD signs of neuronal degeneration are accompanied by markers of microglial activation, inflammation, and oxidant damage. The presence of nitrotyrosine in the cell bodies of neurons in AD suggests that peroxynitrite contributes to the pathogenesis of the disease. In low nanomolar concentrations celastrol was found to suppress the production by human monocytes and macrophages of the pro-inflammatory cytokines TNF-alpha and IL-1beta. Celastrol also decreased the induced expression of class II MHC molecules by microglia. In macrophage lineage cells and endothelial cells celastrol decreased induced but not constitutive NO production. Celastrol suppresses adjuvant arthritis in the rat, demonstrating in vivo anti-inflammatory activity. Low doses of celastrol administered to rats significantly improved their performance in memory, learning and psychomotor activity tests. The potent antioxidant and anti-inflammatory activities of celastrol, and its effects on cognitive functions, suggest that the drug may be useful to treat neurodegenerative diseases accompanied by inflammation, such as AD. (PMID: 11513350) [HMDB] Celastrol, a plant-derived triterpene, has antioxidant and anti-inflammatory activity that may prevent neuronal degeneration in Alzheimers disease (AD). In the brains of patients with AD signs of neuronal degeneration are accompanied by markers of microglial activation, inflammation, and oxidant damage. The presence of nitrotyrosine in the cell bodies of neurons in AD suggests that peroxynitrite contributes to the pathogenesis of the disease. In low nanomolar concentrations celastrol was found to suppress the production by human monocytes and macrophages of the pro-inflammatory cytokines TNF-alpha and IL-1beta. Celastrol also decreased the induced expression of class II MHC molecules by microglia. In macrophage lineage cells and endothelial cells celastrol decreased induced but not constitutive NO production. Celastrol suppresses adjuvant arthritis in the rat, demonstrating in vivo anti-inflammatory activity. Low doses of celastrol administered to rats significantly improved their performance in memory, learning and psychomotor activity tests. The potent antioxidant and anti-inflammatory activities of celastrol, and its effects on cognitive functions, suggest that the drug may be useful to treat neurodegenerative diseases accompanied by inflammation, such as AD. (PMID: 11513350). Celastrol is a pentacyclic triterpenoid that is 24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic acid bearing an oxo substituent at position 2, a hydroxy substituent at position 3 and two methyl groups at positions 9 and 13. An antioxidant and anti-inflammatory agent. Potently inhibits lipid peroxidation in mitochondria and inhibits TNF-alpha-induced NFkappaB activation. Also shown to inhibit topoisomerase II activity in vitro (IC50 = 7.41 muM). It has a role as an antioxidant, an anti-inflammatory drug, an EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor, an antineoplastic agent, a Hsp90 inhibitor and a metabolite. It is a pentacyclic triterpenoid and a monocarboxylic acid. Celastrol is a natural product found in Reissantia buchananii, Crossopetalum gaumeri, and other organisms with data available. A pentacyclic triterpenoid that is 24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic acid bearing an oxo substituent at position 2, a hydroxy substituent at position 3 and two methyl groups at positions 9 and 13. An antioxidant and anti-inflammatory agent. Potently inhibits lipid peroxidation in mitochondria and inhibits TNF-alpha-induced NFkappaB activation. Also shown to inhibit topoisomerase II activity in vitro (IC50 = 7.41 muM).
Tricosanoic acid
Tricosanoic acid, also known as N-tricosanoate or 22FA, belongs to the class of organic compounds known as very long-chain fatty acids. These are fatty acids with an aliphatic tail that contains at least 22 carbon atoms. Tricosanoic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral. Tricosanoic acid is a potentially toxic compound. Constituent of Citrus bergamia (bergamot orange) oil Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant. Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant.
Acetylursolic acid
Isolated from various plants, e.g. Leptospermum scoparium (red tea). Acetylursolic acid is found in many foods, some of which are common verbena, rosemary, tea, and japanese persimmon. Acetylursolic acid is found in common sage. Acetylursolic acid is isolated from various plants, e.g. Leptospermum scoparium (red tea Ursolic acid acetate (Acetylursolic acid), isolated from the aerial roots of Ficus microcarpa, exhibits cytotoxicity against KB cells with IC50 of 8.4 μM[1]. Ursolic acid acetate (Acetylursolic acid), isolated from the aerial roots of Ficus microcarpa, exhibits cytotoxicity against KB cells with IC50 of 8.4 μM[1].
Katonic acid
Katonic acid is found in fruits. Katonic acid is a constituent of Sandoricum koetjape (santol) Constituent of Sandoricum koetjape (santol). Katonic acid is found in fruits.
Queretaroic acid
Queretaroic acid is found in cereals and cereal products. Queretaroic acid is a constituent of Chenopodium quinoa (quinoa), Stenocereus thurberi (organ pipe cactus) Constituent of Chenopodium quinoa (quinoa), Stenocereus thurberi (organ pipe cactus). Queretaroic acid is found in cereals and cereal products and fruits.
Triptohypol F
Triptohypol F is a constituent of Myroxylon balsamum (Tolu balsam) Constituent of Myroxylon balsamum (Tolu balsam)
3-Epikatonic acid
3-Epikatonic acid is found in pulses. 3-Epikatonic acid is a constituent of Cyamopsis tetragonoloba (guar) Constituent of Cyamopsis tetragonoloba (guar). 3-Epikatonic acid is found in pulses.
3-O-Acetyloleanolic acid
Demethylzeylasteral
Tripdiolide
triptolide
Wilforgine
Wilforine
Wilforine is a sesquiterpene pyridine alkaloid; important bioactive compound in T. wilfordii plants, and is effective in treating idiopathic pulmonary fibrosis. Wilforine is a sesquiterpene pyridine alkaloid; important bioactive compound in T. wilfordii plants, and is effective in treating idiopathic pulmonary fibrosis.
Oleanolic acid 3-acetate
Oleanolic acid 3-acetate, also known as 3-O-acetyloleanolic acid, is a member of the class of compounds known as triterpenoids. Triterpenoids are terpene molecules containing six isoprene units. Oleanolic acid 3-acetate is practically insoluble (in water) and a weakly acidic compound (based on its pKa). Oleanolic acid 3-acetate can be found in black-eyed pea and rosemary, which makes oleanolic acid 3-acetate a potential biomarker for the consumption of these food products.
TZ-93
Demethylzeylasteral is a carbopolycyclic compound with formula C29H36O6, originally isolated from Tripterygium wilfordii. It has a role as a plant metabolite, an EC 2.4.1.17 (glucuronosyltransferase) inhibitor, an immunosuppressive agent, an anti-inflammatory agent and a nephroprotective agent. It is a carbopolycyclic compound, an enone, a cyclic ketone, an arenecarbaldehyde, an oxo monocarboxylic acid and a member of benzenediols. Demethylzeylasteral is a natural product found in Tripterygium regelii, Tripterygium hypoglaucum, and Tripterygium wilfordii with data available. A carbopolycyclic compound with formula C29H36O6, originally isolated from Tripterygium wilfordii. Demethylzeylasteral is a triterpene compound isolated from Tripterygium wilfordii Hook F, with anti-inflammatory, immunosuppressive and anti-tumor activities[1][2][3][4][5]. Demethylzeylasteral can significantly alleviates atherosclerosis (AS)[5]. Demethylzeylasteral inhibits triple-negative breast cancer invasion by blocking the canonical and non-canonical TGF-β signaling pathways[2].
Wilforgine
A dihydroagarofuran sesquiterpenoid and pyridine alkaloid with formula C41H47NO19 originally isolated from the roots of Tripterygium wilfordii. Wilforgine is a natural product found in Tripterygium hypoglaucum and Tripterygium wilfordii with data available. Wilforgine is a bioactive sesquiterpene alkaloid in Tripterygium wilfordii Hook. F. Wilforgine can induce microstructural and ultrastructural changes in the muscles of Mythimna separata larvae, and the sites of action are proposed to be calcium receptors or channels in the muscular system[1][2]. Wilforgine is a bioactive sesquiterpene alkaloid in Tripterygium wilfordii Hook. F. Wilforgine can induce microstructural and ultrastructural changes in the muscles of Mythimna separata larvae, and the sites of action are proposed to be calcium receptors or channels in the muscular system[1][2].
Euonymine
A natural product found in Maytenus mekongensis. CID 477607 is a natural product found in Peritassa campestris and Tripterygium wilfordii with data available.
Salaspermic acid
A hexacyclic triterpenoid that is D:A-friedooleanan-29-oic acid substituted by a hydroxy group at position 3 and an epoxy group across positions 3 and 24 (the (3beta,20alpha stereoisomer). Isolated from Salacia macrosperma and Tripterygium wilfordii, it exhibits anti-HIV activity.
Forrestine
A sesquiterpene alkaloid that is isolated from Tripterygium forrestii, Platanus chiapensis and Maytenus chiapensis.
Hypoglaunine C
A sesquiterpene alkaloid that is isolated from Tripterygium hypoglaucum and Tripterygium wilfordii.
hypoglaunine B
A sesquiterpene alkaloid that is a macrolide incorporating a substituted pyridine and dihydroagarofuran moieties. Isolated from root barks of Tripterygium hypoglaucum, it exhibits anti-HIV activity.
Triptocallic acid C
A hexacyclic triterpenoid with formula C30H48O4, originally isolated from Tripterygium wilfordii and Tripterygium hypoglaucum.
Canophyllal
A pentacyclic triterpenoid with formula C30H48O2, originally isolated from the leaves of Syzygium formosanum.
triptohypol B
A pentacyclic triterpenoid with formula C30H40O5, originally isolated from Tripterygium doianum.
triptonine A
A sesquiterpene alkaloid with anti-HIV activity isolated from Tripterygium hypoglaucum.
wilforol B
A pentacyclic triterpenoid with formula C29H38O4, originally isolated from the root bark of Tripterygium wilfordii.
Daucosterol
Daucosterol is a steroid saponin that is sitosterol attached to a beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. It has bee isolated from Panax japonicus var. major and Breynia fruticosa. It has a role as a plant metabolite. It is a steroid saponin, a beta-D-glucoside and a monosaccharide derivative. It is functionally related to a sitosterol. It derives from a hydride of a stigmastane. Sitogluside is a natural product found in Ophiopogon intermedius, Ophiopogon jaburan, and other organisms with data available. A steroid saponin that is sitosterol attached to a beta-D-glucopyranosyl residue at position 3 via a glycosidic linkage. It has bee isolated from Panax japonicus var. major and Breynia fruticosa. C308 - Immunotherapeutic Agent Daucosterol is a natural sterol compound. Daucosterol is a natural sterol compound.
triptobenzene K
A tetracyclic diterpenoid with formula C20H22O5, originally isolated from the dried root outer bark of Tripterygium hypoglaucum.
triptohypol A
A pentacyclic triterpenoid with formula C30H40O6, originally isolated from Tripterygium hypoglaucum.
Wilforol A
Wilforol A is a pentacyclic triterpenoid with formula C29H38O5, originally isolated from the stems of Tripterygium regelii. It has a role as a plant metabolite. It is a pentacyclic triterpenoid, a hydroxy monocarboxylic acid, a member of catechols, a cyclic terpene ketone and an enone. Wilforol A is a natural product found in Tripterygium hypoglaucum, Tripterygium wilfordii, and Celastrus orbiculatus with data available. A pentacyclic triterpenoid with formula C29H38O5, originally isolated from the stems of Tripterygium regelii.
Triptohypol C
Triptohypol C is a pentacyclic triterpenoid with formula C29H40O4, originally isolated from the root bark of Tripterygium regelii. It has a role as a plant metabolite and an apoptosis inducer. It is a pentacyclic triterpenoid, a monocarboxylic acid and a member of benzenediols. Dihydrocelastrol is a natural product found in Tripterygium hypoglaucum and Tripterygium wilfordii with data available. A pentacyclic triterpenoid with formula C29H40O4, originally isolated from the root bark of Tripterygium regelii. Triptohypol C, a Tripterin (HY-13067) derivative, is a potent Nur77-targeting anti-inflammatory agent with an Kd value of 0.87 μM. Triptohypol C inhibits inflammatory response by promoting the interactions of Nur77 with TRAF2 and p62/SQSTM1[1].
triptolide
relative retention time with respect to 9-anthracene Carboxylic Acid is 0.848 D012102 - Reproductive Control Agents > D003270 - Contraceptive Agents D007155 - Immunologic Factors > D007166 - Immunosuppressive Agents D009676 - Noxae > D000988 - Antispermatogenic Agents D009676 - Noxae > D000477 - Alkylating Agents D000970 - Antineoplastic Agents relative retention time with respect to 9-anthracene Carboxylic Acid is 0.842 relative retention time with respect to 9-anthracene Carboxylic Acid is 0.835 Triptolide is a diterpenoid triepoxide extracted from the root of Tripterygium wilfordii with immunosuppressive, anti-inflammatory, antiproliferative and antitumour effects. Triptolide is a NF-κB activation inhibitor[1][2][3][4][5][6]. Triptolide is a diterpenoid triepoxide extracted from the root of Tripterygium wilfordii with immunosuppressive, anti-inflammatory, antiproliferative and antitumour effects. Triptolide is a NF-κB activation inhibitor[1][2][3][4][5][6].
TRICOSANOIC ACID
A very long-chain fatty acid that is tricosane in which one of the methyl groups has been oxidised to the corresponding carboxylic acid. Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant. Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant.
Fumaric Acid
Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite. Fumaric acid, associated with fumarase deficiency, is identified as an oncometabolite or an endogenous, cancer causing metabolite.
Queretaroic acid
Epikatonic acid
Triptohypol F
A pentacyclic diterpenoid with formula C31H52O2, originally isolated from the leaves of Tripterygium hypoglaucum.
Acetylursolic acid
Ursolic acid acetate (Acetylursolic acid), isolated from the aerial roots of Ficus microcarpa, exhibits cytotoxicity against KB cells with IC50 of 8.4 μM[1]. Ursolic acid acetate (Acetylursolic acid), isolated from the aerial roots of Ficus microcarpa, exhibits cytotoxicity against KB cells with IC50 of 8.4 μM[1].
Triptonoterpene methyl ether
An abietane diterpenoid that is abieta-8(14),9(11),12-triene substituted at positions 3, 11 and 14 respectively by oxo, hydroxy and methoxy groups. It is found in Tripterygium wilfordii and Tripterygium hypoglaucum.
Triptoquinone H
An abietane diterpenoid with formula C20H26O3, originally isolated from Tripterygium hypoglaucum.
Tricosanoic acid (6CI,7CI,8CI,9CI)
Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant. Tricosanoic acid is a long-chain fatty acid and shown to be a hair growth stimulant.
AIDS-070322
Wilformine
A sesquiterpene alkaloid that has been isolated from Tripterygium wilfordii and exhibits immunosuppressive and insecticidal properties. It was found to be identical with euonine, previously isolated from Euonymous sieboldiana.
Wilforic acid
A pentacyclic triterpenoid with formula C29H42O4, originally isolated from Tripterygium sp.
Triptobenzene D
An abietane diterpenoid with formula C20H26O2, originally isolated from Tripterygium wilfordii.
Celastolide
A hexacyclic triterpenoid with formula C30H46O5, originally isolated from Tripterygium hypoglaucum.
Triptohypol D
A pentacyclic triterpenoid with formula C32H54O2, originally isolated from the root bark of Tripterygium hypoglaucum.
(3bR,9bS)-6,9-dihydroxy-7-isopropyl-9b-methyl-3,3b,4,9b,10,11-hexahydrophenanthro[1,2-c]furan-1,5-dione
Polpunonic acid
A natural product found in Maytenus diversifolia and Gymnosporia emarginata.