Constituents of Acer nikoense and Myrica rubra. On diarylheptanoids
TLDR
The diarylheptanoid constituents of the titled plants and their close plants were reviewed and some biological activities of A. nikoense and M. rubra were described.Abstract:
The diarylheptanoid constituents of the titled plants and their close plants were reviewed. Many new diarylheptanoids and their glycosides named acerogenin and aceroside were isolated from the stem bark of Acer nikoense, A. griseum and A. triflorum. Myricanone, myricanol and its five new glycosides were isolated from the stem bark of Myrica rubra, and myricanone and galeon, from the stem of M. gale var. tomentosa. The structures of these compounds were determined on the basis of chemical and spectral evidence, and chemotaxonomy of the above plants was briefly discussed. In addition biosynthesis of acerogenin A, revision of the structure for isomyricanone derived from myricanone, and some biological activities of A. nikoense and M. rubra were described.read more
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Bioactive Constituents of Chinese Natural Medicines. VII.^ Inhibitors of Degranulation in RBL-2H3 Cells and Absolute Stereostructures of Three New Diarylheptanoid Glycosides from the Bark of myrica rubra
TL;DR: Three new diarylheptanoid glycosides, named (+)-S-myricanol 5-0-beta-D-glucopyranoside, myricanene A 5-O-alpha-L-arabinofuranosyl(1-->6)-beta- D- glucopyrside, and myricanenes A and B, were isolated from the bark of Chinese Myrica rubra, together with twenty known compounds.
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Medicinal foodstuffs. XXXI. Structures of new aromatic constituents and inhibitors of degranulation in RBL-2H3 cells from a Japanese folk medicine, the stem bark of Acer nikoense.
TL;DR: Four new aromatic constituents were isolated from a Japanese folk medicine, the stem bark of Acer nikoense MAXIM, and the principle cyclic diarylheptanoids were found to show inhibitory effects on the release of beta-hexosaminidase in RBL-2H3 cells.
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Inhibitors of nitric oxide production from the bark of Myrica rubra: structures of new biphenyl type diarylheptanoid glycosides and taraxerane type triterpene
TL;DR: Biphenyl type diarylheptanoids, triterpene, and their polyphenols showed potent inhibitory effects on nitric oxide production in lipopolysaccharide-activated macrophages and were found to inhibit induction of inducible Nitric oxide synthase.
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Melanogenesis Inhibitory and Free Radical Scavenging Activities of Diarylheptanoids and Other Phenolic Compounds from the Bark of Acer nikoense
TL;DR: Melanogenesis inhibitory and free radical scavenging activities of nine cyclic and one acyclic diarylheptanoids and two phenolic compounds isolated from the ethyl acetate-soluble fraction of the MeOH extract of the bark of Acer nikoense MAXIM were examined.
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Structures of new cyclic diarylheptanoids and inhibitors of nitric oxide production from Japanese folk medicine Acer nikoense.
TL;DR: Three new cyclic diarylheptanoids, acerosides B1 and B2 and aceroketoside, were isolated together with 20 known compounds from a Japanese folk medicine, the stem bark of Acer nikoense, and found to exhibit inhibitory activity on nitric oxide production in lipopolysaccharide-activated macrophages.