Author(s): De Souza, Rejane C. ; Fernandes, João B. ; Vieira, Paulo C. ; Da Silva, M. Fátima Das G. F. ; Godoy, Marizete F. P. [UNESP] ; Pagnocca, Fernando C. [UNESP] ; Bueno, Odair C. [UNESP] ; Hebling, M. José A. [UNESP] ; Pirani, José R.
Date: 2014
Persistent ID: http://hdl.handle.net/11449/68335
Origin: Oasisbr
Subject(s): Atta sexdens rubropilosa; Imidazole Alkaloid; Jaborandi; Leucoagaricus gongylophorus; Pilocarpus grandiflorus
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The stems of Pilocarpus grandiflorus have afforded the new imidazole alkaloid 4,6-dehydro-1,2,4,5-tetrahydro-2,5-dioxopilocarpine in addition to the 17 known compounds germanicol, β-amiryn, ocotillone, stigmast-4-en-3-one, 3β-hydroxy-stigmast-5-en-7-one, 6β-hydroxy-stigmast-4-en-3-one, β-sitosterol, scopoletin, 3-(1′,1′-dimethylallyl)-scopoletin, elisin, dictamine, 4-methoxy-2-quinolone, platydesmine, syringaresinol, syringaldehyde, syringic acid and vanillic acid. Their structures were elucidated on the basis of chemical and spectroscopic evidence. The phenolic compounds vanillic acid and syringaldehyde and the furoquinoline alkaloid platydesmine exhibited antifungal activity against Leucoagaricus gongylophorus, the symbiotic fungus of leaf-cutting ants (Atta sexdens rubropilosa). © 2005 Verlag der Zeitschrift für Naturforschung.
Departamento de Química Universidade Federal de São Carlos, Caixa Postal 676, São Carlos, SP
Centro de Estudos de Insetos Sociais Universidade Estadual Paulista, Rio Claro, SP
Departamento de Botanica Instituto de Biociencias Universidade de São Paulo, São Paulo - SP
Centro de Estudos de Insetos Sociais Universidade Estadual Paulista, Rio Claro, SP
