Two new triterpenoids from Nauclea officinalis.

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Pharmacology

Background:

• Nauclea officinalis is a plant species with a history of traditional medicinal use.
• Triterpenoids are a class of natural compounds known for diverse biological activities.
• Investigating the chemical constituents of medicinal plants can lead to the discovery of novel therapeutic agents.

Purpose of the Study:

• To isolate and characterize new triterpenoids and 27-nor-triterpenoids from Nauclea officinalis.
• To determine the structures of the isolated compounds using advanced spectroscopic techniques.
• To evaluate the cytotoxic effects of the isolated compounds on A-549 lung cancer cells.

Main Methods:

• Extraction of compounds from the stems (with bark) of Nauclea officinalis.
• Structure elucidation using 1D and 2D Nuclear Magnetic Resonance (NMR) spectroscopy.
• High-Resolution Mass Spectrometry (HR-MS) analysis for molecular formula determination.
• Cytotoxicity assays against A-549 lung cancer cell line.

Main Results:

• Isolation and identification of two new triterpenoids and three new 27-nor-triterpenoids.
• The identified compounds include ursane-type triterpenoids and pyrocincholic acid derivatives.
• Preliminary investigation into the cytotoxic activity of compounds 1-5 against A-549 lung cancer cells was conducted.

Conclusions:

• Nauclea officinalis is a source of novel triterpenoid compounds.
• The isolated compounds represent unique chemical structures with potential pharmacological relevance.
• Further research is warranted to explore the therapeutic potential of these compounds, particularly their anti-cancer properties.