A new oxygenated ursane derivative from Canthium multiflorum.

Area of Science:

• Phytochemistry
• Natural Product Chemistry
• Medicinal Plant Research

Background:

• Canthium multiflorum is a plant species within the Rubiaceae family.
• The roots of medicinal plants are a rich source of bioactive compounds.
• Ursane derivatives are a class of triterpenoids with diverse biological activities.

Purpose of the Study:

• To isolate and characterize novel chemical constituents from the roots of Canthium multiflorum.
• To identify new ursane derivatives and other secondary metabolites.
• To contribute to the phytochemical knowledge of the Canthium genus.

Main Methods:

• Phytochemical investigation of Canthium multiflorum root extract.
• Isolation of compounds using chromatographic techniques (e.g., column chromatography, HPLC).
• Structure elucidation of isolated compounds using spectroscopic methods (e.g., NMR, Mass Spectrometry).

Main Results:

• A new ursane derivative, 3-oxo-15alpha,19alpha-dihydroxyursa-1,12-dien-28-oic acid, was successfully isolated.
• Ten known compounds were also isolated: 10-O-acetylgeniposidic acid, 6,7-dimethoxycoumarin, hymexelsin, scopoletin, and 5,6,7-trimethoxycoumarin.
• The structural characterization confirmed the identity of the new ursane derivative.

Conclusions:

• The phytochemical analysis of Canthium multiflorum roots yielded a new ursane derivative.
• The isolation of these compounds expands the understanding of the chemical diversity in Canthium species.
• Further studies are warranted to explore the potential biological activities of the isolated compounds.