Limonoid from the rhizomes of Luvunga scandens (Roxb.) Buch. Ham

Area of Science:

• Phytochemistry
• Natural Product Chemistry

Background:

• Luvunga scandens (Roxb.) Buch. Ham. is a plant species with potential medicinal applications.
• The chemical composition of its rhizomes has not been previously explored.

Purpose of the Study:

• To conduct the first-ever investigation into the chemical constituents of Luvunga scandens rhizomes.
• To isolate and characterize novel and known compounds from this plant source.

Main Methods:

• Extraction and isolation of compounds using various chromatography techniques.
• Structural elucidation employing Infrared (IR), Ultraviolet (UV), High-Resolution Electrospray Ionization Mass Spectrometry (HR-ESI-MS), and Nuclear Magnetic Resonance (NMR) 1D and 2D experiments.
• Comparison of elucidated structures with existing literature data.

Main Results:

• Isolation of one new limonoid, designated Luvunga A (1).
• Identification of seven known compounds: one additional limonoid (2) and six coumarins (3-8).
• These compounds represent the first reported isolation from the L. scandens species.

Conclusions:

• The chemical investigation successfully identified a new limonoid and several known compounds from Luvunga scandens rhizomes.
• The findings contribute to the understanding of the phytochemical profile of L. scandens.
• This research provides a foundation for further pharmacological studies on the isolated compounds.