Alkaloids from Dictyoloma vandellianum: their chemosystematic significance |
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Authors: | Sartor Claudenice F Providelo da Silva M Fátima das G F Fernandes João B Vieira Paulo C Fo Edson Rodrigues Garcia Cortez Diógenes A |
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Institution: | Departamento de Química, Universidade Federal de S?o Carlos, Caixa Postal 676, 13565-905 S?o Carlos, SP, Brazil. |
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Abstract: | The dichloromethane extract from leaves of Dictyoloma vandellianum afforded five alkaloids 2-(14'-hydroxy-14',15'-dimethylhexadecanyl)-4-quinolone, 2-(12'-hydroxy-12'-methyltridecanyl)-3-methoxy-4-quinolone, 2-(12'-hydroxy-12'-methyltridecanyl)-4-quinolone, 2-(14'-hydroxy-14',15'-dimethylhexadecanyl)-3-methoxy-4-quinolone, 6-methoxydictyolomide A, besides the known alkaloid 8-methoxyflindersine and beta-sitosterol. The presence of 2-alkyl-4(1H)-quinolones in D. vandellianum shows strong similarities with the Zanthoxyleae, which contains several 2-alkyl-4-quinolones. Thus, the Dictyolomatoideae apparently occupies a position between the proto-Rutaceae genera and the Spathelioideae, but close to the Zanthoxyleae. |
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Keywords: | Rutaceae Dictyoloma vandellianum 2-Alkyl-4(1H)-quinolones Chemosystematics |
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