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A new chemotype of Scoparia dulcis
A new chemotype was found in Scoparia dulcis from Taiwan, China and Thailand based on the diterpene composition and the structure was determined to be 6-benzoyl-labda-8(17),13-diene-15,18-diol by spectroscopic methods. Expand
Metabolism of paeoniflorin and related compounds by human intestinal bacteria.
Through screening of various strains of intestinal bacteria from human feces, Peptostreptococcus anaerobius was shown to have potent ability to transform paeoniflorin to pae onimetaboline I. Expand
Antiviral activity of natural occurring flavonoids in vitro.
Results suggest that Chrysosplenium plants, which contain large amounts of chrysosplenol B and chrysomethoxyl C, may be useful as medicinal herbs against the common cold caused by rhinovirus infection. Expand
Studies on aldose reductase inhibitors from natural products. IV. Constituents and aldose reductase inhibitory effect of Chrysanthemum morifolium, Bixa orellana and Ipomoea batatas.
The hot water extracts of Chrysanthemum morifolium, Bixa orellana and Ipomoea batatas, were found to have potent inhibitory activity towards lens aldose reductase (AR). Ellagic acid (4) was isolatedExpand
Antiviral agents of plant origin. III. Scopadulin, a novel tetracyclic diterpene from Scoparia dulcis L.
The structure and stereochemistry of scopadulin, a novel aphidicolane-type diterpene isolated from Scoparia dulcis L. have been established from spectral data and single-crystal X-ray analysis of itsExpand
Mechanism of action of the antiherpesvirus biflavone ginkgetin
Ginkgetin suppressed viral protein synthesis when added at various steps of HSV-1 replication and exerted strong inhibition of transcription of the immediate-early genes. Expand
Polygoacetophenoside, A New Acetophenone Glucoside from Polygonum multiflorum1.
The structure of the new glucoside was deduced to be 2,3,4,6-tetrahy-droxyacetophenone 3- O-beta- D-glucoside by its chemical and spectral data. Expand
Production of diterpenoids by cultured cells from two chemotypes of Scoparia dulcis
Callus and multiple shoot cultures from two chemotypes of Scoparia dulcis suggest that SA is an important intermediate in the biosynthesis of SDB and that the production ofSDB is related to the differentiation of leaves. Expand
Transgenic fertile Scoparia dulcis L., a folk medicinal plant, conferred with a herbicide-resistant trait using an Ri binary vector
The results suggest that an Ri binary system is one of the useful tools for the transformation of medicinal plants for which a regeneration protocol has not been established. Expand
Three new lanostanoids from Ganoderma lucidum.
Three new lanostanoids--ganodermenonol (1), ganodermadiol (2), and ganodermatriol (3)--were isolated from the MeOH extract of Ganoderma lucidum, together with ergosterol and its peroxide. Expand