Results 221 to 230 of about 13,341 (266)

Coumarins from Calophyllum teysmannii

Phytochemistry, 1998
Abstract During a chemotaxonomic survey of several Malaysian Calophyllum species, two new coumarins were isolated from the bark of Calophyllum teysmannii var. inophylloide . Structure elucidation of the new coumarins, teysmanones A and B are presented and species varieties are discussed.
Cao, S.-G., Sim, K.-Y., Pereira, J., Goh, S.-H.   +3 more
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New Xanthones from Calophyllum caledonicum

Journal of Natural Products, 2000
Four new xanthones, caledonixanthones A-D (1-4), were isolated from the trunk bark of Calophyllum caledonicum, in addition to 17 known compounds. The structures of 1-4 were determined by means of spectroscopic analysis and chemical derivatization.
C, Morel, D, Séraphin, J M, Oger, M, Litaudon, T, Sévenet, P, Richomme, J, Bruneton   +6 more
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A polyisoprenylated ketone from Calophyllum enervosum

Phytochemistry, 2005
A polyisoprenylated ketone named enervosanone has been isolated from the stem bark of Calophyllum enervosum together with three known compounds, cambogin, osajaxanthone and epicatechin. Their structures were determined by spectroscopic analysis. The antimicrobial evaluations of the isolated compounds were also reported.
Taher, Muhammad, Idris, Muhammad Sum, Ahmad, Farediah, Arbain, Dayar   +3 more
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Xanthones from Calophyllum teysmannii var. inophylloide

Phytochemistry, 2000
Further study of the wood of Calophyllum teysmannii Miq. var. inophylloide yielded xanthones 7-hydroxy-1,2,8-trimethoxyxanthone, 6-hydroxy-1,2,5-trimethoxyxanthone, and 2-carbomethoxy-6-methoxyxanthone in addition to 3,8-dihydroxy-1,2,4-trimethoxyxanthone, 3-hydroxy-2,4-dimethoxyxanthone, 1,7-dihydroxy-3-methoxyanthone (gentisin) and 2-hydroxyxanthone.
A, Kijjoa, M J, Gonzalez, C M, Afonso, M M, Pinto, C, Anantachoke, W, Herz   +5 more
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Antimicrobial and cytotoxic agents from Calophyllum inophyllum

Phytochemistry, 2004
The study of the chemical constituents of the root bark and the nut of Calophyllum inophyllum has resulted in the isolation and characterization of a xanthone derivative, named inoxanthone, 3, together with 12 known compounds: caloxanthones A, 4 and B, 5, macluraxanthone, 6, 1,5-dihydroxyxanthone, 7, calophynic acid, 8, brasiliensic acid, 9 ...
Yimdjo, M.C., Azebaze, A.G., Nkengfack, A.E., Meyer, A.M., Bodo, B., Fomum, Z.T.   +5 more
openaire   +3 more sources

Minor Methylated Pyranoamentoflavones fromCalophyllum venulosum

Natural Product Letters, 2001
Two new biflavonoids, pyranoamentoflavone 7-methyl ether (1) and pyranoamentoflavone 4'-methyl ether (2), have been isolated from the leaves of Calophyllum venulosum. The structures of these two new compounds were elucidated by spectroscopic data.
Cao, S.-G., Sim, K.Y., Goh, S.H.
openaire   +2 more sources

Calophyllum (Clusiaceae – Guttiferae) in Africa

Kew Bulletin, 2016
Calophyllum africanum Cheek & Q. Luke is described and illustrated from Mali, in that part close to the Fouta Djalon of Guinea. Plant species present in its gallery forest habitat are listed in detail. Threatened by gold and uranium mining activities, C.
Martin Cheek, Quentin Luke
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Calophyllum inophyllum Linnaeus 1753

2007
Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part C), pp. 370-473 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 376, DOI: 10.5281/zenodo ...
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Hieracium calophyllum subsp. flowering

2018
Published as part of Milutinović, Violeta, Niketić, Marjan, Krunić, Aleksej, Nikolić, Dejan, Petković, Miloš, Ušjak, Ljuboš & Petrović, Silvana, 2018, Sesquiterpene lactones from the methanol extracts of twenty-eight Hieracium species from the Balkan Peninsula and their chemosystematic significance, pp.
Milutinović, Violeta, Niketić, Marjan, Krunić, Aleksej, Nikolić, Dejan, Petković, Miloš, Ušjak, Ljuboš, Petrović, Silvana   +6 more
openaire   +1 more source

A xanthone from Calophyllum inophyllum

Phytochemistry, 1991
Abstract A new xanthone, 2-(3-hydroxy-3-methylbutyl)-1,3,5,6-tetrahydroxyxanthone, was isolated from the heart-wood of Calophyllum inophyllum . Other xanthones present were jacareubin, 6-deoxyjacareubin, 2-(3-methylbut-2-enyl)-1,3,5,6-tetrahydroxyxanthone and 2-(3-methylbut-2-enyl)-1,3,5-trihydroxyxanthone.
S.H. Goh, Ibrahim Jantan
openaire   +1 more source