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Oleanic acid

The fatty/waxy products contained the lipophilic substances, including fatty oils, waxes, resins and colorants. Valuable pharmacological effects were proved for some minor constituents of these products (e.g. triterpenes, diterpenes, sterols and carotenoids). Thin layer chromatography and on-line UV-VIS spectroscopy were used for the quick identification and quantity determination of these compounds using authentic samples as standards. The SFE method proved favorable in terras of both extraction yield and speed of carotenoids. The CO2 extracts of the lavandin, clary sage and thyme have been enriched in triterpenic compounds (a-es P-amyrin, oleanic acid, ursolic acid, etc.) and phytosterols. Both free and esterified triterpenoids were present in the extracts of the different samples. Furthermore camosol and other diterpenes were detected in the SFE extract of Lamiaceae plants. The fatty acid composition was only slightly different for extracts obtained by SFE and conventional hexane extraction. [Pg.362]

Three novel triterpenoid saponins with hypoglucaemic activity, isolated from a Colombian climbing plant and named tuberosides A, B, and C, contain P-d-glucopyranose esterified at the anomeric centre with oleanic acid derivatives. Porphyrine-carboxylate esters of D-galactopyranose have been synthesized either by transesterification of a porphyrine methyl ester with l,2 3,4-di-0-iso-propylidene-a-D-galactopyranose, followed by acetal hydrolysis or by condensation of 6-0-(4-formylbenzoyl)-D-galactose (37) with pyrrole. ... [Pg.109]

Mostly, terpenoids originate from plants, but they are also synthesized by other organisms, including yeast and bacteria, as primary or secondary metabolites. Terpenoids are S5mthesized from two 5-car-bon building blocks that consist of isoprenoid units [62]. Based on the number of building blocks, terpenoids have been classified into four classes monoterpenes (geraniol, carvone, d-limonene, and perillyl alcohol), diterpenes (retinol and trans-retinoic acid), triterpenes (lupeol, oleanic acid, betulinic acid, and ursolic acid), and tetraterpenes (lutein, a-carotene, yS-carotene, and lycopene) [66]. [Pg.71]

Chemical Name 3/3-hydroxy-11-oxo-20/3-olean-l2-en-29-oic acid hydrogen butanedioate Common Name Glycyrrhetinic acid hydrogen succinate Structural Formula ... [Pg.238]

Figure 12.3 GC/MS (a) and THM GC/MS (b) curves of aged dammar. Peak assignments 2, a cubebene 3, copaene 4, ft bourbonene 8,10 12, cadinane type pyrolysis fragments 14 16, cadinene type pyrolysis fragments 17, calamanene type pyrolysis fragments 18 21, unidentified sesquiterpenoids 22, dammaradienone 23, dammaradienol 24, nor a amyrone 25, 28 nor olean 17 en 3 one 26, dammarenolic acid methyl ester 27, oleanonic acid 28, hydroxydammarenone 29, oleanonic aldehyde 30, ursonic acid methyl ester 31, ursonic aldehyde 32, nor (3 amyrone 34, 20,24 epoxy 25 hydroxy 3,4 seco 4(28) dammaren 3 oic acid methyl ester 35, 20,24 epoxy 25 hydroxy dammaren 3 one 36, dammaradienol... Figure 12.3 GC/MS (a) and THM GC/MS (b) curves of aged dammar. Peak assignments 2, a cubebene 3, copaene 4, ft bourbonene 8,10 12, cadinane type pyrolysis fragments 14 16, cadinene type pyrolysis fragments 17, calamanene type pyrolysis fragments 18 21, unidentified sesquiterpenoids 22, dammaradienone 23, dammaradienol 24, nor a amyrone 25, 28 nor olean 17 en 3 one 26, dammarenolic acid methyl ester 27, oleanonic acid 28, hydroxydammarenone 29, oleanonic aldehyde 30, ursonic acid methyl ester 31, ursonic aldehyde 32, nor (3 amyrone 34, 20,24 epoxy 25 hydroxy 3,4 seco 4(28) dammaren 3 oic acid methyl ester 35, 20,24 epoxy 25 hydroxy dammaren 3 one 36, dammaradienol...
Figure 12.4 THM GC/MS curve of mastic resin. Peak assignments 1, nor f3 amyrone 2, (8R) 3 oxo hydroxypolipoda 13E,17E,21 triene 3, nor 28 olean 18 en 3 one 4, moronic acid methyl ester 5, oleanonic acid methyl ester 6, oleanonic aldehyde 7,8, (iso)masticadienonic acid methyl ester... Figure 12.4 THM GC/MS curve of mastic resin. Peak assignments 1, nor f3 amyrone 2, (8R) 3 oxo hydroxypolipoda 13E,17E,21 triene 3, nor 28 olean 18 en 3 one 4, moronic acid methyl ester 5, oleanonic acid methyl ester 6, oleanonic aldehyde 7,8, (iso)masticadienonic acid methyl ester...
By using betulin as substrate, some mechanistic studies were performed and it was demonstrated that these reactions are catalyzed by Brpnsted acid species generated in situ from the hydrolysis of Bi(0Tf)3-.vH20. This process was also applied to other terpenic compounds. The sesquiterpene ( )-caryophyllene oxide originated clov-2-en-9a-ol by a cariophyllene-clovane rearrangement (Scheme 41) whereas 3-oxo- l 8a-olean-28- l 3(3-olide was obtained from oleanonic acid (Scheme 42). With this triterpene derivative, only 28,13(3-lactonization occurred, with inversion of the configuration of the stereocenter at C18 [133],... [Pg.170]

The inhibitory effect of olean-12-ene-3p,23,28-triol tri-O-hemiphthalate sodium (158), ursolic acid (210), and betulinic acid (257) on lung tumors have been reported [43]. Lantadene B (134), on oral administration, has an inhibitory effect on mouse hepatic tumors induced by A-nitrosodiethylamine and phenobarbital [45],... [Pg.66]

N1 - OLEAN-12-EN-28-OIC ACID, 3-((0-beta-0-GALACT0PYRAN0SYl-U-3>-0-(beta-D-6LUC0PYRAN0SYL-(1-4) )-beta-D-GLUCOPYRANOSYL)OXY >-, <3-beta >-... [Pg.150]

N1 - OLEAN-12-EN-30-OIC ACID, 3-beta-HYOROXY-ll-OXO-, HYDROGEN SUCCINATE, DISODIUM SALT... [Pg.150]

In the sucrosolysis preparation of Olean , the generic name for Proctor Gamble Company s olestra, six to eight fatty acids, selected for functionality purposes, are positioned on sucrose. Although many noncaloric fats are limited or nondigestible, they are made from traditional vegetable oils. Akoh has summarized uses of these and similar products.134... [Pg.1619]

Ardisicrenoside C (= 3(3,16a,28-Trihydroxy-olean-12-en-30-oic acid 3-0-Rha-Glc-[Glc] -Ara-30- 0-Glc (triterpene glycoside) Ardisia crenata (Myrsinaceae) [root] cAMP PDE (46)... [Pg.288]

Proprietary Names. PO 12. It is an ingredient of Biosone GA. 3jS-Hydroxy-l l-oxo-olean-12-en-30-oic acid C3oH4604 = 470.7 CAS—471-53-4... [Pg.584]

Pachysandiol B (109) and pachysonol (110), two new friedelin derivatives, have been isolated from Pachysandra terminalis Rearrangement of the corresponding 3-en-16-one followed by WolfT-Kishner reduction yielded 18) H-olean-12-ene. Roxburghonic acid (111) from the leaves of Putranjiva roxhurghii is a C-25 carboxylic acid. " The full paper on pachysandiol A has appeared. ... [Pg.173]

See other pages where Oleanic acid is mentioned: [Pg.179]    [Pg.675]    [Pg.675]    [Pg.328]    [Pg.329]    [Pg.319]    [Pg.185]    [Pg.179]    [Pg.675]    [Pg.675]    [Pg.328]    [Pg.329]    [Pg.319]    [Pg.185]    [Pg.16]    [Pg.80]    [Pg.330]    [Pg.498]    [Pg.48]    [Pg.172]    [Pg.57]    [Pg.40]    [Pg.60]    [Pg.64]    [Pg.89]    [Pg.90]    [Pg.352]    [Pg.1584]    [Pg.1618]    [Pg.133]    [Pg.41]    [Pg.293]    [Pg.293]    [Pg.648]    [Pg.430]    [Pg.158]    [Pg.267]    [Pg.453]   
See also in sourсe #XX -- [ Pg.71 ]



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