scispace - formally typeset
Search or ask a question
Journal ArticleDOI

Structure of oxoflavidin, a 9,10-dihydrophenanthropyrone from Coelogyne elata

01 Jan 1984-Phytochemistry (Pergamon)-Vol. 23, Iss: 3, pp 671-673
TL;DR: In this paper, a new phenolic compound isolated from the Himalayan orchid Coelogyne elata was shown to be 2,7-dihydroxy-9,10-Dihydro-5H-phenanthro[4,5-bcd]pyran-5-one (2d) by spectral and chemical evidence.
About: This article is published in Phytochemistry.The article was published on 1984-01-01. It has received 24 citations till now.
Citations
More filters
Journal ArticleDOI
TL;DR: A review of the literature on orchids that are used in traditional medicine has been reviewed in this work indicating a great potential of such organisms as source of chemical entities for the development of new drugs as mentioned in this paper.
Abstract: The Orchidaceae family is the largest group of flowering plants in the Angiosperm monocotyledons spread on our planet. Its members, called orchids, are herbs or epiphytes with showy flowers distributed mainly in tropical regions. Several classes of phytoconstituents have been so far isolated from therapeutically-used orchids showing a great chemical diversity. Among them, phenolic derivatives have been studied for their biological activities, especially in the field of cancer, inflammation, and neurodegeneration. On the other hand, limited information has been so far obtained on the numerous alkaloids and terpenoids isolated from several orchid species. Recent articles revealed pronounced effects of some alkaloids on the CNS. Published literature on orchids that are used in traditional medicine has been reviewed in this work indicating a great potential of such organisms as source of chemical entities for the development of new drugs.

44 citations

Journal ArticleDOI
TL;DR: Bulbophyllanthrin, a novel phenanthrene derivative from the orchid B. leopardium, was shown to have the structure 1a mainly on the basis of spectral evidence including 13 C and 2D NMR spectra as discussed by the authors.

43 citations

Journal ArticleDOI
TL;DR: Crepidatin, a new bibenzyl derivative, was isolated from the orchid Dendrobium crepidatum and its structure was determined from spectral data.

33 citations

Journal ArticleDOI
TL;DR: Cirrhopetalanthrin, a new dimeric phenanthrene derivative, was isolated from the orchid maculosum and its structure was deduced from spectral and chemical evidence as discussed by the authors.

33 citations

Journal ArticleDOI
TL;DR: Gymnopusin, the first naturally occurring phenanthrene derivative having a hydroxyl group at C-9, was isolated from the orchid Bulbophyllum gymnopus.

32 citations

References
More filters
Journal ArticleDOI
TL;DR: 2,7-Dihydroxy-4-methoxy-9,10-dihydrophenanthrene was isolated and identified from the whole plant of Coelogyne ochracea and C. elata.

77 citations

Journal ArticleDOI
TL;DR: Two new modified 9, 10-dihydrophenanthrenes of the orchids Pholidota articulata, Otochilus porecta and O. fusca have been established and NMR spectral analysis of isoflavidinin acetate confirmed its structure.

33 citations