Sesquiterpenoids, Triterpenoids, and Flavonoids from the Fruits of Schinus molle

Abstract

Twelve sesquiterpenoids, one of which was a new compound, six tirucallane-type triterpenoids, and four flavonoids were isolated from the fruits of Schinus molle L. (Anacardiaceae). Their chemical structures were determined on the basis of spectroscopic data and X-ray analysis. Among them, three flavonoids exhibited almost identical antioxidative activity as that of α-tocopherol by the ferric thiocyanate method. In addition, one flavonoid showed a stronger radical-scavenging effect on 1,1-diphenyl-2-picrylhydrazyl than that of α-tocopherol.

Cytotoxic sesquiterpenoids from Senecio densiserratus

“…1) were identified as tinocordifolioside (3) (Maurya and Handa 1998), teuclatriol (4) (Bruno et al, 1993), 10-epit-euclatriol (5) (Ono et al, 2008), teucladiol (6) (Pranithanchai et al, 2009), 4b, 6b-dihydroxy-10a-methoxy-1a, 5b, 7a-guaiane (7) (Ono et al, 2008), dehydrocostuslactone (8) (Chhabra et al, 1998), epoxy-germacrenol (9) (Ahmed et al, 2006), 4b, 5a-epoxygermacr-1(10)-E-en-2b, 6b-diol (10) (Sanz et al, 1991) and homalomenol C (11) (Ogungbe and Setzer 2013) (Chen et al, 2010;Liu et al, 2006), and a b-glucopyranosyl unit [d H 4.66 (1H, d, J = 7.6 Hz), 3.61 (1H, dd, J = 9.2, 7.6 Hz), 4.97 (1H, t, J = 9.2 Hz), 3.53 (1H, m), 3.56 (1H, m), 4.64 (1H, dd, J = 12.0, 6.0 Hz), 4.21 (1H, dd, J = 12.0, 6.4 Hz); d C 104. 5, 77.7, 74.2, 72.7, 69.4, 63.3] (Kitajima et al, 2000).…”

Chemodiversity and Antiproliferative Activity of the Essential Oil of Schinus molle Growing in Jordan

“…The composition of the leaves volatile oil of S. molle , collected from the same region in Turkey, exhibited great variations with regard to the main and minor components . Other secondary metabolites identified and isolated from the aerial parts of S. molle included sesqui‐ and triterpenoids, flavonoids, and other phenolics, such as gallic acid, methyl gallate, chlorogenic acid, and catechin . The occurrence of these phenolics justifies the benefits of S. molle extracts as an antipollution, anti‐aging, and antiwrinkle agent in fighting the detrimental effects of air pollutants on human skin …”

Studies on the Constituents of Whole Plants of Youngia japonica

“…Assay of Antioxidative Activity 12) A mixture of 2.51% linoleic acidEtOH solution (0.80 ml), 0.05 M phosphate buffer (pH 7.0, 1.60 ml), EtOH (0.60 ml) and H 2 O (0.80 ml) were added to 0.4% or 10 mM EtOH solution (0.20 ml) of each sample in vial with a cap and placed in darkness at 40°C to accelerate oxidation. After the 5th day of incubation, this assay solution (0.05 ml) was diluted with 75% EtOH (4.85 ml), which was followed by adding 30% ammonium thiocyanate (0.05 ml).…”

“…Compound 17 showed strong activity in controlling the release of histamine. On the other hand, strong antioxidant activities 12) were exhibited by 4, which has ion-bonding between chicoric acid and choline, and 3 of the chicoric acid derivative, which bonds with a caffeoyl group and a p-hydroxycinnamoyl group. Compound 12 (chicoric acid) showed lesser significant activity than 4 and 3.…”