Del extracto en diclorometano obtenido de los rizomas de Paepalanthus diffissus Moldenke (Eriocaulaceae) fueron aisladas las naftopiranonas bioactivas (+)-semi-vioxantina [3] y vioxantina [8]. Estos compuestos fueron caracterizados en base a estudios espectroscópicos, incluyendo experimentos de RMN uni- y bi-dimensionales. La revisión de la literatura indica que estos metabolitos son encontrados frecuentemente en hongos y líquenes, pero son compuestos raros en plantas superiores. La presencia de (+)-semi-vioxantina en plantas con flores, es descrita aquí por primera vez. Palabras clave: Eriocaulaceae; Paepalanthus; naftopiranonas; (+)-semi-vioxantina; vioxantina From a dichloromethane extract obtained of rhizomes of Paepalanthus diffissus M...
The order Brassicales contains several economically important plant families of great agricultural v...
Two new tropane alkaloid N-oxides substituted by a methylpyrrole moiety were isolated from the bark ...
Amaranthus muricatus (Moquin) Gillies ex Hicken (Amaranthaceae), de nombre común "yerba meona" "pa...
Del extracto en diclorometano obtenido de los rizomas de Paepalanthus diffissus Moldenke (Eriocaulac...
Three new compounds-3,4-dihydro-10-hydroxy-7-methoxy-3-(R)-methyl-1H-3,4-dihydronaphtho-]2,3c]pyran-...
Este trabalho apresenta o estudo de substâncias apolares obtidas a partir de plantas pertencentes ao...
Eriocaulaceae stand out as one of the most representative families of the rocky fields of the Espinh...
Three tetrasubstituted furopyrans, named chenopodolans A-C, were isolated together with the well kno...
A general procedure was developed for the simultaneous separation of flavonoids and naphthopyrones f...
From the fermentation mycelium of the endophytic fungus Edenia gomezpompae were obtained several phy...
This work presents the study of nonpolar compounds from plants belonging to the genus Paepalanthus M...
Objective: To isolate endophytic fungi from Elaeocarpus sylvestris (E. sylvestris) and to isolate an...
Two phytotoxins were isolated from the liquid culture of Phoma chenopodiicola, a fungal pathogen pro...
A new anthraquinone derivative, named guepinone (1), along with the known substances isosulochrin (2...
Fungi are present in the most diverse environments including the interior of plant tissues, living a...
The order Brassicales contains several economically important plant families of great agricultural v...
Two new tropane alkaloid N-oxides substituted by a methylpyrrole moiety were isolated from the bark ...
Amaranthus muricatus (Moquin) Gillies ex Hicken (Amaranthaceae), de nombre común "yerba meona" "pa...
Del extracto en diclorometano obtenido de los rizomas de Paepalanthus diffissus Moldenke (Eriocaulac...
Three new compounds-3,4-dihydro-10-hydroxy-7-methoxy-3-(R)-methyl-1H-3,4-dihydronaphtho-]2,3c]pyran-...
Este trabalho apresenta o estudo de substâncias apolares obtidas a partir de plantas pertencentes ao...
Eriocaulaceae stand out as one of the most representative families of the rocky fields of the Espinh...
Three tetrasubstituted furopyrans, named chenopodolans A-C, were isolated together with the well kno...
A general procedure was developed for the simultaneous separation of flavonoids and naphthopyrones f...
From the fermentation mycelium of the endophytic fungus Edenia gomezpompae were obtained several phy...
This work presents the study of nonpolar compounds from plants belonging to the genus Paepalanthus M...
Objective: To isolate endophytic fungi from Elaeocarpus sylvestris (E. sylvestris) and to isolate an...
Two phytotoxins were isolated from the liquid culture of Phoma chenopodiicola, a fungal pathogen pro...
A new anthraquinone derivative, named guepinone (1), along with the known substances isosulochrin (2...
Fungi are present in the most diverse environments including the interior of plant tissues, living a...
The order Brassicales contains several economically important plant families of great agricultural v...
Two new tropane alkaloid N-oxides substituted by a methylpyrrole moiety were isolated from the bark ...
Amaranthus muricatus (Moquin) Gillies ex Hicken (Amaranthaceae), de nombre común "yerba meona" "pa...