Antifungal cyclopentenediones from Piper coruscans

Area of Science:

• Natural Products Chemistry
• Medicinal Chemistry
• Mycology

Background:

• Piper species are known sources of bioactive compounds.
• Antifungal drug resistance is a growing global health concern.
• Development of novel antifungal agents is crucial to combat resistant infections.

Purpose of the Study:

• To isolate and characterize new chemical entities from Piper coruscans.
• To evaluate the antifungal activity of the isolated compounds.
• To explore potential new antifungal drug leads.

Main Methods:

• Isolation of compounds using chromatographic techniques.
• Structure elucidation via spectroscopic methods (NMR, MS) and chemical analysis.
• Antifungal activity testing against Candida albicans and its resistant strains using standard assays.

Main Results:

• Two new cyclopentenedione derivatives, Coruscanones A and B, were successfully isolated.
• Coruscanone A demonstrated significant antifungal activity against both susceptible and azole-resistant Candida albicans strains.
• Coruscanone B also exhibited antifungal properties, though less potent than Coruscanone A.

Conclusions:

• Coruscanones A and B are novel antifungal compounds from Piper coruscans.
• Coruscanone A represents a promising lead compound for developing new antifungal therapies, particularly against resistant strains.
• The findings suggest Piper coruscans as a valuable source for discovering novel antifungal agents.