In this study, we aimed to evaluate the immunomodulatory effects of crude leaf extracts from
Piper gaudichaudianum Kunth, P. arboreum Aub., P. umbellata L., P. fuligineum Kunth, and …

Two complementary methodologies involving olefin ring-closing metathesis and
Knoevenagel-electrocyclization were utilized for the synthesis of α-xyloidones and fused …

The resolution of the natural racemic chromane 3, 4‐dihydro‐5‐hydroxy‐2, 7‐dimethyl‐8‐(3
″‐methyl‐2 ″‐butenyl)‐2‐(4′‐methyl‐1′, 3′‐pentadienyl)‐2H‐1‐benzopyran‐6 …

The synthesis of 2-amino-chromene with excellent yields (82%) was achieved by utilizing
basic hierarchical zeolites prepared by surfactant-templating as catalysts in a …

Synthetic chromanol derivatives (TMC4O, 6-hydroxy-2, 2, 7, 8-tetramethyl-chroman-4-one;
TMC2O, 6-hydroxy-4, 4, 7, 8-tetramethyl-chroman-2-one; and Twin, 1, 3, 4, 8, 9, 11 …

Several Piper species accumulate piperamides as secondary metabolites, and although
they have relevant biological importance, many details of their biosynthetic pathways have …

Synthetic routes of chromene are an area of thrust research due to its wide application as
pigments, agrochemicals, cosmetics, and an important nucleus scaffold for various …

Background: Sixteen 3-styryl-2H-chromenes were subjected to quantitative structure–activity
relationship analysis based on their cytotoxicity, tumor selectivity and anti-HIV activity, in …

The curculionid beetle Naupactus bipes (Germar, 1824)(Coleoptera: Curculionidae:
Brachycerinae) has shown feeding preference for leaves of Piper gaudichaudianum …

Piper aduncum and Piper hispidinervum are species found primarily in the Amazon region,
and have been highlighted by the fact that they contain, in their essential oils, significant …