Sylvone, a new furanoid lignan of Piper sylvaticum
TL;DR: The structure of a 2,3,4 trisubstituted furanoid lignan, designated sylvone, was established as 1 from detailed spectroscopical and chemical studies as discussed by the authors.
About: This article is published in Tetrahedron.The article was published on 1984-01-01. It has received 19 citations till now.
Citations
More filters
TL;DR: Nine known and two new abietane diterpenoids isolated from the aerial parts of Rabdosia lophanthoides var.
8 citations
TL;DR: In this article, the characteristic 13C NMR chemical shift ranges were used as a guide for the establishment of the parent skeletons of various categories and subcategories of lignoids (lignans, neolignants and oxyneolignans) and for the determination of the substitution pattern of the side-chain are tabulated.
Abstract: The characteristic 13C NMR chemical shift ranges as a guide for the establishment of the parent skeletons of various categories and subcategories of lignoids (lignans, neolignans and oxyneolignans) and for the determination of the substitution pattern of the side-chain are tabulated.
7 citations
TL;DR: Plants in the genus Hernandia of the family Hernandiaceae have been used ethnobotanically to treat malaria, postpartum hemorrhage, and morning sickness, and crude extracts of H. moerenhoutiana and H. voyronii have been reported to exhibit certain antioxidant, antimalarial, cytotoxic, and spasmolytic activities.
Abstract: Plants in the genus Hernandia of the family Hernandiaceae have been used ethnobotanically to treat malaria, postpartum hemorrhage, and morning sickness. Additionally, crude extracts of H. moerenhoutiana and H. voyronii have been reported to exhibit certain antioxidant, antimalarial, cytotoxic, and spasmolytic activities, as well as to inhibit platelet aggregation and prostaglandin biosynthesis. Of the approximately 24 species in this genus, about a quarter have been subjected to detailed phytochemical investigation, namely, H. cordigera, H. guianensis, H. ovigera, H. ovigera var. mascarenensis, H. peltata ( H. nymphaeifolia ), H. sonora, and H. voyronii. From over 130 compounds obtained from these species, the major secondary metabolites are represented by various classes of isoquinoline alkaloids and lignans, along with minor constituents of other alkaloidal (isoindole and pyridine) types, as well as benzenoids, flavonoids, monoterpenoids, and sterols. Some of these isolates have been found to exhibit various biological activities, such as antiplasmodial action, antiplatelet aggregation, cytotoxicity, inhibition of Epstein-Barr virus early antigen activation induced by 12- O -tetradecanoylphorbol 13-acetate, and inhibition of the transformation of JB6 mouse epidermal cells. The biologically active constituents of the genus Hernandia are discussed in detail.
3 citations
TL;DR: A review of lignans from the genus Piper and their pharmacological activities can be found in this article , where the authors present an up-to-date critical review and a systematic summary of publications.
2 citations
References
More filters
TL;DR: Four lignans were isolated from the flower buds of Magnolia fargesii Cheng, two of which were known lignan, pinoresinol dimethyl ether and liriores inol-B dim methyl ether; the other two were new lignANS, magnolin and fargein.
53 citations
TL;DR: The structure of sylvatine (1), a new alkamide from Piper sylvaticum, has been elucidated from spectroscopic studies, chemical reactions and correlation with compounds of known structures as mentioned in this paper.
15 citations
TL;DR: Sylvamide, a new amide derivative, has been isolated from the petrol extract of the seeds of Piper sylvaticum (Roxb) from spectral and chemical properties as discussed by the authors.
10 citations
TL;DR: Spektroskopische Strukturaufklärung eines Inhaltsstoffes (Alkaloid) aus Piper sylvaticum Roxb.
Abstract: Spektroskopische Strukturaufklarung eines Inhaltsstoffes (Alkaloid) ausPiper sylvaticum Roxb. mit teils synthetischer Beweisfuhrung.
7 citations