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Extractos vegetales utilizados como biocontroladores con énfasis en la familia piperaceae. una revisión
(Universidad Nacional de Colombia, Facultad de Agronomía, Centro Editorial, 2008)
El presente trabajo es una recopilación de casos comprobados de actividad biológica de extractos y sustancias de origen vegetal para el control de arvenses, plagas y enfermedades en el sector agrícola. De esta forma, se ...
Caldensinic acid, a prenylated benzoic acid from Piper caldense
(ELSEVIER SCIENCE BV, 2009)
The CH(2)Cl(2) and MeOH extracts from leaves of Piper caldense were subjected to chromatographic separation procedures to afford the new prenylated benzoic acid, caldensinic acid (3-[(2`E,6`E,10`E)-11`-carboxy-3`,7`,15`- ...
Metabolism of (-)-grandisin from Piper solmsianum in Coleoptera and Lepidoptera species
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The biotransformation of the major Piper solmsianum leaf phenylpropanoids, such as the tetrahydrofuran lignan grandisin and derivatives was investigated in the beetle Naupactus bipes as well as in the caterpillars Heraclides ...
Trypanocidal tetrahydrofuran lignans from Peperomia blanda
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Five tetrahydrofuran lignans and two known flavones were isolated from the aerial parts of Peperomia blanda. The structures of the isolated lignans were elucidated by interpretation of their spectroscopic data, including ...
Composition and screening of antifungal activity against Cladosporium sphaerospermum and Cladosporium cladosporioides of essential oils of leaves and fruits of Piper species
(ACADEMIC JOURNALS, 2010)
This study investigated the composition and antifungal activity against Cladosporium sphaerospermum and Cladosporium cladosporioides of essential oils of leaves of Piper cernuum, Piper diospyrifolium, Piper crassinervium, ...
Piperamides and their derivatives as potential anti-trypanosomal agents
(BIRKHAUSER BOSTON INC, 2009)
We describe herein an evaluation of the trypanocidal effect of eight piperamides (1-8) isolated from Piper tuberculatum bearing dihydropyridone, piperidine, and isobutyl moieties against epimastigote forms of Trypanosoma ...
Further monoterpene chromane esters from Peperomia obtusifolia: VCD determination of the absolute configuration of a new diastereomeric mixture
(Pergamon-Elsevier B.V. Ltd, 2012-11-07)
A reinvestigation of the monoterpene chromane ester enriched fraction from Peperomia obtusifolia using chiral chromatography led to the identification of a minor peak, which was elucidated by NMR and HRMS as fenchyl-3,4- ...
A chromene and prenylated benzoic acid from Piper aduncum
(Elsevier B.V., 1999-08-01)
In addition to nerolidol, 2',6'-dihydroxy-4'-methoxydihydrochalcone, methyl 2,2-dimethyl-8-(3'-methyl-2'-butenyl)-2H-1-chromene-6-carboxylate, methyl 2,2-dimethyl-2H-1-chromene-6-carboxylate and methyl 8-hydroxy-2,2-dime ...
Circadian rhythm of anti-fungal prenylated chromene in leaves of Piper aduncum
(Wiley-Blackwell, 2005-07-01)
Leaves of Piper aduncum accumulate the anti-fungal chromenes methyl 2,2-dimethyl-2H-1-chromene-6-carboxylate (1) and methyl 2,2-dimethyl-8-(3'-methyl-2'-butenyl)-2H-1-chromene-6-carboxylate (2). The enzymatic formation of ...