New Furans from Cirsium chlorolepis

Area of Science:

• Phytochemistry
• Natural Product Chemistry
• Organic Chemistry

Background:

• CIRSIUM CHLOROLEPIS (Compositae) is a plant species with potential for novel compound discovery.
• Root extracts of plants are often rich sources of bioactive secondary metabolites.

Purpose of the Study:

• To isolate and characterize chemical constituents from the roots of CIRSIUM CHLOROLEPIS.
• To identify novel compounds and elucidate their structures.

Main Methods:

• Isolation of compounds using chromatographic techniques.
• Structure elucidation via UV, IR, proton Nuclear Magnetic Resonance ((1)H-NMR), and carbon-13 Nuclear Magnetic Resonance ((13)C-NMR) spectroscopy.
• Confirmation of structures through chemical reactions.

Main Results:

• Two known compounds, 5-hydroxymethyl-2-furancarboxaldehyde and 5-methoxymethyl-2-furan-carboxaldehyde, were identified.
• Two new compounds, cirsiumaldehyde and cirsiumoside, were isolated and structurally characterized.
• Comprehensive spectroscopic data confirmed the proposed structures.

Conclusions:

• The study successfully identified four compounds from CIRSIUM CHLOROLEPIS roots, including two novel natural products.
• The findings contribute to the understanding of the chemical diversity within the CIRSIUM genus.
• Elucidated structures provide a basis for further investigation into potential biological activities.