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Antimicrobial activities of some thymol derivatives from the roots of Inula hupehensis.
This is the first report that these five thymol derivatives show inhibitory activity against plant pathogenic fungi, as well as some naturally occurring antimicrobial compounds found in medicinal plants, herbs and spice extracts. Expand
Lignans from the fruit of Schisandra sphenanthera, and their inhibition of HSV-2 and adenovirus
The systematic isolation of the EtOAc extract from Schisandra sphenanthera fruit was performed during a search for HSV-2 and adenovirus inhibitors. Sixteen lignans were obtained, with compound 1Expand
Terpenoids from Eupatorium fortunei Turcz
Four new terpenoids, namely, rel-(1R,2S,3R,4R,6S)-p-menthane-1,2,3,6-tetrol (1), rel(1R,2R,3R,4S,6S)-p-menthane-1,2,3,6-tetrol (2), 9-hydroxythymol 3-O-angelate (3), and (3 beta,Expand
Germacrane sesquiterpene esters from Salvia roborowskii.
From the whole plant of Salvia roborowskii, four new germacrane sesquiterpene esters, 3beta,6beta,8alpha-triacetoxy-4beta,5alpha-epoxy-1-oxogermacr-10, which elucidated by spectroscopic methods including 2D NMR techniques (1H-1H COSY and 1H- 1H NOESY for 1). Expand
Two new butenolide derivatives from Saussurea katochaete.
Two new butenolide derivatives were isolated from the acetone extract of the whole plant of Saussurea katochaete and their structures were established by various spectral methods including IR, 1D, 2D-NMR and HR-ESIMS. Expand
Biological activities of flavonoids from pathogenic-infected Astragalus adsurgens
Fifteen flavonoids were obtained from the most active ethyl acetate fraction and identified as astradsurnin, a new chalcone derivative, together with fourteen known Flavonoids, which were tested for antibacterial activities against five bacteria and cytotoxic activities against two selected cancer cells. Expand
Spirochensilides A and B, Two New Rearranged Triterpenoids from Abies chensiensis.
Two new triterpenoids, spirochensilides A (1) and B (2) were isolated from Abies chensiensis and are the first example of triter penoids possessing a unique 8,10-cyclo-9, 10-seco and methyl-rearranged carbon skeleton. Expand
Guaianolides and elemanolides from Vernonia anthelmintica
Two new guaianolides, (1R, 4R, 5S, 6R, 7R, 8S)-8,15-dihydroxyguaia-10(14), 11(13)-dien-12,6-olide (1) and (1R, 4R, 5S, 6R, 7R, 8S, 11S)-8,15-dihydroxyguaia-10(14)-en-6,12-olide (2), and two knownExpand
Bioassay-guided isolation of dehydrocostus lactone from Saussurea lappa: A new targeted cytosolic thioredoxin reductase anticancer agent.
DHC inhibited the activity of TrxR1 in He La cells, which elicited an accumulation of reactive oxygen species (ROS) in cells and a collapse of the intracellular redox equilibrium and eventually induced apoptosis of HeLa cells, and it was observed that DHC killed HeLA cells through induction of apoptosis. Expand
Anti-inflammatory Terpenoids from the Leaves and Twigs of Dysoxylum gotadhora.
Nine new terpenoids, including three cyclolanostane triterpenoids and six isopimarane diter penoids, were isolated from the leaves and twigs of Dysoxylum gotadhora, and exhibited noteworthy inhibition of nitric oxide production induced by lipopolysaccharide in RAW 264. Expand