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Labdanes and withanolides from Physalis coztomatl.
Labd-13(E)-ene-8alpha,15-diol and physacoztomatin represent the first labdane diterpenes isolated from the genus Physalis, and are established after analyses of their spectroscopic data and by means of chemical transformations.
Labdanes and sucrose esters from Physalis sordida.
Eight new compounds, labdanes 2-4, homoergostane 10, and sucrose esters 12-15, were isolated from aerial parts of Physalis sordida together with several known compounds and showed anti-inflammatory activity similar to that of indomethacin.
Insect growth inhibition by tocotrienols and hydroquinones from Roldana barba-johannis.
The methanol extract from the aerial parts of Roldana barba-johannis (Asteraceae) afforded sargachromenol, sargahydroquinoic acid, and sargaquinoic Acid, which showed insecticidal and insect growth regulatory activities against the Fall Armyworm and may be useful as natural insecticidal agents.
Sucrose esters from the fruits of Physalis nicandroides var. attenuata.
Three 2,3,1',3'-tetraacyl- and two 2,3,3'-triacylsucroses, nicandroses A-E (1-5), were isolated from the fruits of Physalis nicandroides var. attenuata. The acyl groups in these new compounds were
Chemical Composition and Antimicrobial Activity of Ageratina deltoidea
The chemical study of Ageratina deltoidea afforded grandiflorenic acid, ent‐kaurenoic acid, and eight benzylbenzoates, described for the first time, which were evaluated on Staphylococcus aureus, Escherichia coli, and Candida albicans.
18-Acetoxywithanolides from Physalis chenopodifolia
Five new withasteroids, physachenolides A - E were isolated from the acetone and methanol extracts of leaves, flowers and stems of Physalis chenopodifolia Lam. The structural assignments of these
Anti-inflammatory Constituents of Mortonia greggii Gray
The results showed that the friedelan dehydrocanophyllic acid methyl ester exhibits an anti-inflammatory effect which could be related to an inhibition of prostaglandin and NO production.
Secondary Metabolites from Mexican Species of the Tribe Senecioneae (Asteraceae)
A revision of the Mexican species belonging to the tribe Senecioneae chemically studied so far, shows that theGenera Senecio and Packera and the genera Barkleyanthus, Pittocaulon, Psacalium, and Telanthophora contain pyrrolizidine alkaloids and eremophilane derivatives as their main secondary metabolites.
Evaluation of the anti-inflammatory and antioxidant activities of the plastoquinone derivatives isolated from Roldana barba-johannis.
Evaluation of the anti-inflammatory and antioxidant activities of sargahydroquinoic acid, sargachromenol, their mixture, and their methyl esters showed that most of them are antioxidant and anti- inflammatory agents.