Xanthones from Vismia latifolia



Document title: Xanthones from Vismia latifolia
Journal: Journal of the Brazilian Chemical Society
Database: PERIÓDICA
System number: 000310913
ISSN: 0103-5053
Authors: 1
2

Institutions: 1Universidade Federal de Minas Gerais, Departamento de Quimica, Belo Horizonte, Minas Gerais. Brasil
2Universidade Federal de Ouro Preto, Departamento de Quimica, Ouro Preto, Minas Gerais. Brasil
Year:
Season: Dic
Volumen: 11
Number: 5
Pages: 537-539
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract A new xanthone,1,4,8-trihydroxyxanthone (1,4,8-trihydroxy-9H-xanthen-9-one), was isolated from the roots of Vismia latifolia (Guttiferae). Four other known xanthones were isolated: 1,5-dihydroxy-8-methoxyxanthone, 1,7-dihydroxyxanthone, 1,6-dihydroxy-7-methoxyxanthone and 1,3,5,6-tetrahydroxyxanthone. The last two compounds were isolated for the first time from a Vismia species. The structures were established by UV, IR, MS, 1D and 2D NMR spectroscopic techniques
Portuguese abstract Este trabalho relata o isolamento e a identificação de uma nova xantona, 1,4,8-triidroxixantona (1,4,8-triidroxi-9H-xanten-9-ona), isolada das raízes de Vismia latifolia (Guttiferae). Quatro outras xantonas conhecidas também foram isoladas: 1,5-diidroxi-8-metoxixantona, 1,7-diidroxixantona, 1,6-diidroxi-7-metoxixantona e 1,3,5,6-tetraidroxixantona, sendo as duas últimas inéditas no gênero Vismia. As estruturas foram estabelecidas através das técnicas de espectroscópicas de UV, IV, EM e RMN (1D e 2D)
Disciplines: Química,
Biología
Keyword: Fitoquímica,
Angiospermas,
Xantonas,
1,4,8-trihidroxixantona,
Vismia latifolia,
Guttiferae
Keyword: Chemistry,
Biology,
Phytochemistry,
Angiosperms,
Xanthones,
1,4,8-trihydroxyxanthone,
Vismia latifolia,
Guttiferae
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