Data/hora: 02/06/2024 14:40:31

Provedor de dados: | 42
País: | Brazil
Título: | Anthraquinones from the bark of Senna macranthera
Autores: | Branco,Alexsandro; Pinto,Angelo C.; Schripsema,Jan; Braz-Filho,Raimundo.
Data: | 2011-12-01
Ano: | 2011
Palavras-chave: | Anthraquinone; 2-acetyl-physcion; Fabaceae; Senna acranthera.
Resumo: | 2-acetyl physcion (2-acetyl-1,8-dihydroxy-6-methoxy-3-methyl-9,10-anthraquinone, 2), a rare anthraquinone, was isolated from Senna macranthera var. nervosa (Vogel) H.S. Irwin &amp;amp; Barneby (Fabaceae). The chemical structure was elucidated and all ¹H and 13C NMR chemical shifts were assigned by NMR one- (¹HNMR, {¹H}-13CNMR, and APT-13CNMR) and two (COSY, NOESY, HMQC and HMBC) dimensional of this natural compound. Furthermore, the minor anthraquinones chrysophanol (3), chrysophanol-8-methyl ether (4) and physcion (5) were characterized by GC-MS analysis. The occurrence of the anthraquinones 3-5 confirms that S. macranthera is a typical representative of the genus Senna.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400003
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652011000400003
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.83 n.4 2011
Fonte: | info:eu-repo/semantics/openAccess