Constituintes químicos e avaliação da atividade antibacteriana de Macroptilium lathyroides (L.) Urb. (Fabaceae)

• Autor(a) principal: Sousa,Leôncio M. de
• Data de Publicação: 2013
• Outros Autores: Gois,Roberto W. da S., Lemos,Telma L. G., Arriaga,Ângela M. C., Andrade-Neto,Manoel, Santiago,Gilvandete M. P., Braz-Filho,Raimundo, Costa,José G. M. da, Rodrigues,Fabiola F. G.
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Química Nova (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000900016
• topic: Macroptilium lathyroides; lasiodiplodin derivatives; coumaronochromone

The chemical investigation of the stems and branches of Macroptilium lathyroides led to the isolation of a mixture of β-sitosterol and stigmasterol. The extracts from the roots allowed the isolation of lasiodiplodin, a mixture of stigmast-4-en-6β-ol-3-one and stigmast-4,22-dien-6β-ol-3-one, de-O-methyllasiodiplodin, genistein and lupinalbin A. The structures of the isolated compounds were assigned on the basis of their NMR data, including comparison of their spectral data with values described in the literature. The antibacterial activity of crude extracts from stems, branches and roots was evaluated. This is the first report involving the chemical investigation of this species.