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Lupane triterpenes

G. Culioli, C. Mathe, P. Archier, C. Vieillescazes, A lupane triterpene from frankincense (Boswellia sp., Burseraceae), Phytochemistry, 62, 537 541 (2003). [Pg.33]

These processes are normally enzyme-catalyzed. Purefy ctemical processes are seldom encountered with carbon conq)ounds in nature. The few exceptions include the very act of phenol coupling (by which racemic compounds are obtained), cyclization reactions ofpolyprenyl compoimds (which benefit from the preferred conformation of the reaction partners, suitable for the cyclization, Wendt 2000), and Diels-Alder cycloadditions. The latter have been advocated for the biosynthesis of celastroidine A (= volubilide) from a lupane triterpene and an abietane diterpene in two different plants, Hippocratea celastroides Kunth from Mexico (Jimenez-Estrada 2000) and Hippocratea volubilis Linnaeus (Alvarenga 2000). [Pg.215]

Betulinic acid (lupane triterpene) Widespread Rhododendron arboreum (Ericaceae) Candida albicans secreted aspartic protease (14 pM) (HIV-1 protease) [36]... [Pg.571]

A variety of plant bioactives inhibit the metallopeptidase aminopeptidase N [63-68], the most potent inhibitors (variously active at 1-7 pM) being the phenolics curcumin, phloretin and quercetin [64-67] and the lupane triterpene betulinic acid (IC5o value 7 pM) [68] (Table 2). [Pg.576]

Betulinic acid (lupane triterpene) Widespread Tovomita krukovii (Clusiaceae), Diospyros perigrina (Ebenaceae) Aminopeptidase N (7 pM) [68]... [Pg.578]

Monogynol B P-Viscol) (lupane triterpene) Asteraceae, Phyllanthus emblica (Euphorbiaceae), Lupinus luteus (Fabaceae) (34 pM) [22 pM] ... [Pg.587]

Lupeol linoleate (=Lupeol -9, cis-12-octadecadienoic acid acid ester) (lupane triterpene FA ester) Semi-synthetic from Lupeol CHY (> 50 pM), TRY (10 pM) [7 pM] [106]... [Pg.587]

Betulol Trochoi) (lupane triterpene) (birch) (Betulaceae) [outer bark], Diospyros spp. (Ebenaceae) (> 300) [antineoplastic]... [Pg.318]

Lupeol (= Fagasterol Monogynol B (3-Viscol) (lupane triterpene)... [Pg.375]

Heliantriol C 3-O-myristate (= Taraxast-20-ene-3P,16 3,22a-triol 3-O-myristate) (triterpene) Heliantriol C 3-O-palmitate (= Taraxast-20-ene-3 3,160,22a-triol 3-O-palmitate) (triterpene) Lupeol (= Fagasterol Monogynol B fl-Viscol) (lupane triterpene)... [Pg.542]

Lupeol palmitate ( = Lupeol hexadecanoic acid ester)] (lupane triterpene FA ester)... [Pg.588]

Figure 9-10. Structures of lupane triterpenes and betulinic acid derivatives (182-196). Figure 9-10. Structures of lupane triterpenes and betulinic acid derivatives (182-196).
Two lupane triterpenes, bemhnic acid (Ml) and platanic acid (M2), from Syzigium claviflorum Wall. (Myrtaceae family) were reported first to reduce HIV IHB reproduction by 50% in H9 lymphocytes (118). Afterwards, many derivatives were... [Pg.1186]

Lupane triterpenes are very common in the Celastraceae family. Esters of lupane triterpenes with aromatic acids have been isolated from others sources but in Celastraceae 0-caffeoyl esters are the most frequently found. C-3 position is the most common compromised with esterification and the stereochemistry of the ester moiety is usually p. [Pg.645]

See other pages where Lupane triterpenes is mentioned: [Pg.191]    [Pg.320]    [Pg.320]    [Pg.320]    [Pg.385]    [Pg.536]    [Pg.582]    [Pg.588]    [Pg.1534]    [Pg.105]    [Pg.694]   
See also in sourсe #XX -- [ Pg.22 , Pg.105 , Pg.117 ]

See also in sourсe #XX -- [ Pg.645 ]

See also in sourсe #XX -- [ Pg.249 ]

See also in sourсe #XX -- [ Pg.105 , Pg.117 ]



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Betulinic acid (lupane triterpene

Lupane

Lupane triterpene

Lupane triterpene

Lupanes

Triterpenes

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