Classification Term: 1552

Quassinoids (ontology term: CHEMONTID:0002119)

A group of compounds chemically degraded from triterpenes. According to their basic skeleton, quassinoids are categorized into five distinct groups, C-18, C-19, C-20, C-22 and C-25 types. The C-20 quassinoids can be further classified into two types, tetracyclic and the pentacyclic. The tetracyclic variety does not have oxygenation at C-20, while the pentacyclic quassinoids possess additional oxygenation at C-20 that allows for the formation of an additional ring." [PMID:15638734]

found 15 associated metabolites at category metabolite taxonomy ontology rank level.

Ancestor: Terpene lactones

Child Taxonomies: There is no child term of current ontology term.

Nigakihemiacetal B

11-hydroxy-4,15-dimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,16-dione

C22H30O6 (390.2042)


Nigakihemiacetal B is a constituent of Quassia amara (Surinam quassia) Constituent of Quassia amara (Surinam quassia) Neoquassin is a triterpenoid.

   

Quassin

(3AS,6aR,7aS,8S,11aS,11bS,11cS)-1,3a,4,5,6a,7,7a,8,11,11a,11b,11c-dodecahydro-2,10-dimethoxy-3,8,11a,11c-tetramethyldibenzo(de,g)chromene-1,5,11-trione

C22H28O6 (388.1886)


Bitter constituent of Quassia amara (Surinam quassia) and Picrasma excelsa (Jamaican quassiawood) Quassin is a white bitter, crystalline substance extracted from the quassia tree. It is the bitterest substance found in nature with a bitter threshold of 0.08ppm and it is 50 times more bitter than quinine. Quassin is a triterpenoid. 2,12-Dimethoxypicrasa-2,12-diene-1,11,16-trione is a natural product found in Picrasma quassioides, Quassia amara, and other organisms with data available. Bitter constituent of Quassia amara (Surinam quassia) and Picrasma excelsa (Jamaican quassiawood)

   

Glaucarubin

4,5,16,17-Tetrahydroxy-6,14,18-trimethyl-9-oxo-3,10-dioxapentacyclo[9.8.0.0¹,⁷.0⁴,¹⁹.0¹³,¹⁸]nonadec-14-en-8-yl 2-hydroxy-2-methylbutanoic acid

C25H36O10 (496.2308)


Glaucarubin is found in fats and oils. Glaucarubin is isolated from Simarouba glauca (aceituno C254 - Anti-Infective Agent > C276 - Antiparasitic Agent > C277 - Antiprotozoal Agent Isolated from Simarouba glauca (aceituno). Glaucarubin is found in fats and oils. D000970 - Antineoplastic Agents

   

Quassimarin

12,15,16-Trihydroxy-9,13,17-trimethyl-4,11-dioxo-5,18-dioxapentacyclo[12.5.0.0¹,⁶.0²,¹⁷.0⁸,¹³]nonadec-9-en-3-yl 2-(acetyloxy)-2-methylbutanoic acid

C27H36O11 (536.2258)


Quassimarin is a constituent of Quassia amara (Surinam quassia). Constituent of Quassia amara (Surinam quassia)

   

Glaucarubolone 15-O-beta-D-glucopyranoside

4,5,17-trihydroxy-6,14,18-trimethyl-8-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3,10-dioxapentacyclo[9.8.0.0¹,⁷.0⁴,¹⁹.0¹³,¹⁸]nonadec-14-ene-9,16-dione

C26H36O13 (556.2156)


Glaucarubolone 15-O-beta-D-glucopyranoside is found in fats and oils. Glaucarubolone 15-O-beta-D-glucopyranoside is a constituent of Simarouba glauca (aceituno) Constituent of Simarouba glauca (aceituno). Glaucarubolone 15-O-beta-D-glucopyranoside is found in fats and oils.

   

1alpha-O-Methylquassin

3,4,15-trimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-11,16-dione

C23H32O6 (404.2199)


1alpha-O-Methylquassin is a constituent of Quassia amara (Surinam quassia). Constituent of Quassia amara (Surinam quassia)

   

12alpha-Hydroxy-13,18-dehydroparain

15,16-dihydroxy-4-methoxy-2,6,17-trimethyl-14-methylidene-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadec-4-ene-3,11-dione

C21H28O6 (376.1886)


12alpha-Hydroxy-13,18-dehydroparain is a constituent of Quassia amara (Surinam quassia). Constituent of Quassia amara (Surinam quassia)

   

16-Methyl-epi-nigakihemiacetal B

4,11,15-trimethoxy-2,6,14,17-tetramethyl-10-oxatetracyclo[7.7.1.0²,⁷.0¹³,¹⁷]heptadeca-4,14-diene-3,16-dione

C23H32O6 (404.2199)


16-Methyl-epi-nigakihemiacetal B is a constituent of Quassia amara (Surinam quassia). Constituent of Quassia amara (Surinam quassia)

   

Quassinol

5,8-dihydroxy-2,9,15,17-tetramethyl-6,13-dioxapentacyclo[12.3.1.0⁵,¹⁷.0⁷,¹⁶.0¹⁰,¹⁵]octadeca-8,10-diene-4,12-dione

C20H24O6 (360.1573)


Quassinol is a constituent of Quassia amara (Surinam quassia). Constituent of Quassia amara (Surinam quassia)

   

(+)-Brusatol

methyl 10,15,16-trihydroxy-9,13-dimethyl-3-[(3-methylbut-2-enoyl)oxy]-4,11-dioxo-5,18-dioxapentacyclo[12.5.0.0¹,⁶.0²,¹⁷.0⁸,¹³]nonadec-9-ene-17-carboxylate

C26H32O11 (520.1945)


   

13alpha(21)-Epoxyeurycomanone

4,5,7,8,17-pentahydroxy-14,18-dimethyl-3,10-dioxaspiro[oxirane-2,6-pentacyclo[9.8.0.0¹,⁷.0⁴,¹⁹.0¹³,¹⁸]nonadecan]-14-ene-9,16-dione

C20H24O10 (424.1369)


Pasakbumin B, a bioactive compound from Eurycoma longifolia Jack, exhibits potent antiulcer activity[1].

   

Brucein E

2,3,11,12,15,16-hexahydroxy-9,13,17-trimethyl-5,18-dioxapentacyclo[12.5.0.0¹,⁶.0²,¹⁷.0⁸,¹³]nonadec-9-en-4-one

C20H28O9 (412.1733)


   

Bruceine D

2,3,12,15,16-pentahydroxy-9,13,17-trimethyl-5,18-dioxapentacyclo[12.5.0.0¹,⁶.0²,¹⁷.0⁸,¹³]nonadec-9-ene-4,11-dione

C20H26O9 (410.1577)


   

Eurycomanol

4,5,7,8,16,17-Hexahydroxy-14,18-dimethyl-6-methylidene-3,10-dioxapentacyclo[9.8.0.01,7.04,19.013,18]nonadec-14-en-9-one

C20H26O9 (410.1577)


   

Pasakbumin-A

(1R,4R,5R,7R,8R,11R,13S,17S,18S,19R)-4,5,7,8,17-pentahydroxy-14,18-dimethyl-6-methylidene-3,10-dioxapentacyclo[9.8.0.01,7.04,19.013,18]nonadec-14-ene-9,16-dione

C20H24O9 (408.142)


Eurycomanone is a natural product found in Eurycoma longifolia with data available. Eurycomanone could increases spermatogenesis by inhibiting the activity of phosphodiesterase and aromatase in steroidogenesis.