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Journal ArticleDOI

Konyanin: a new lignan from hapuophyllum vulcaniclm

01 Jan 1984-Tetrahedron (Pergamon)-Vol. 40, Iss: 7, pp 1145-1150
TL;DR: Konyanin this paper is the first known 1,4-dihydroarylnaphthalene lignan in which the lactone carbonyl is bonded to C-3 instead of C-2.
About: This article is published in Tetrahedron.The article was published on 1984-01-01. It has received 30 citations till now. The article focuses on the topics: Lignan.
Citations
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Journal ArticleDOI

320 citations

Journal ArticleDOI
TL;DR: One new and six known lignans, as well as sideritoflavone and rosmarinic acid were isolated from Hyptis verticillata as discussed by the authors.

56 citations

Journal ArticleDOI
TL;DR: Investigation of the stem extract of Piper philippinum led to isolation of eight compounds, piperphilippinins I-VI, Philippinamide, and (+)-bornyl caffeate, which showed anti-platelet activities in vitro.

51 citations

Journal ArticleDOI
TL;DR: An efficient synthetic method of 1,4-dihydronaphthalenes having various alkyl groups on the 4-position and/or ethoxycarbonyl group on the 2-position through selective intramolecular Pt-catalyzed 6-endo cyclohydroarylation of ethyl 2-benzyl-2,3-alkadienoates was developed.

42 citations

References
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Journal ArticleDOI
TL;DR: In this article, the authors reported the isolation and characterisation of five new compounds and nine known compounds from the heartwood of Cleistanthus collinus, including wodeshiol, 3,4-dihydrotaiwanin, and three new glycosides.

67 citations

Journal ArticleDOI
TL;DR: In this paper, Ellagic acid, diphyllin and two new lignan lactones, cleistanthin and collinusin, have been isolated from Cleistanthus collinus (Roxb).

65 citations

Journal ArticleDOI
TL;DR: The fruit of Virola sebifera contains in the seed (2R, 3S)-3-(3,4-dimethoxybenzyl)-2-(3-4-methylenedioxybenzol)-butyrolactone, and in the pericarp (2 R, 3R)-2,3-di-(3, 4-dimethylfluoromethydroxybenZyl)-butiesolactone.

64 citations

Journal ArticleDOI
TL;DR: The aerial parts of Haplophyllum tuberculatum collected in Sudan have yielded the furoquinoline alkaloid skimmianine, the lignan justicidin-A, and 5,7,4'-trihydroxy-6-methoxy-3-O-glucosyl flavone.
Abstract: The aerial parts of HAPLOPHYLLUM TUBERCULATUM collected in Sudan have yielded the furoquinoline alkaloid skimmianine, the lignan justicidin-A, and 5,7,4′-trihydroxy-6-methoxy-3-O-glucosyl flavone. Skimmianine was identified by direct comparison with authentic material; justicidin-A by analysis of spectral data and by examination of lanthanide induced shifts in the PMR spectrum; and 5,7,4′-trihydroxy-6-methoxy-3-O-glucosyl flavone by spectral analysis of the original isolate and of its hydrolysis product.

28 citations