Journal
PHYTOCHEMISTRY LETTERS
Volume 5, Issue 3, Pages 519-523Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.phytol.2012.05.004
Keywords
Guignardones; Tricycloalternarenes; Meroterpenes; Endophytic fungi; Guignardia mangiferae
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Funding
- Fundacao de Amparo Pesquisa do Estado de Sao Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
- FAPESP
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Two new guignardones and one tricycloalternarene derivatives, named guignardone D, E (2-3) and tricycloalternarene F (4), and the known guignardone A (1) were isolated from Guignardia mangiferae, an endophytic fungus from the leaves of Viguiera arenaria (Asteraceae), after fermentation in Czapek medium. Structures were established on the basis of their spectroscopic data, including H-1 NMR, C-13 NMR, HMQC, HMBC and HRESI-MS. (C) 2012 Phytochemical Society of Europe. Published by Elsevier B.V. All rights reserved.
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