A chromanone alkaloid from Derris ovalifolia stem.

Area of Science:

• Natural Product Chemistry
• Phytochemistry
• Organic Synthesis

Background:

• Derris ovalifolia is a plant species known for its potential bioactive compounds.
• Previous research has explored the chemical constituents of Derris species, but novel chromanone alkaloids remain of interest.

Purpose of the Study:

• To isolate and characterize chemical constituents from the stem of Derris ovalifolia.
• To identify and confirm the structure of a new chromanone alkaloid and known related compounds.

Main Methods:

• Extraction and isolation of compounds from Derris ovalifolia stem.
• Structure elucidation using comprehensive spectral data interpretation (e.g., NMR, MS).
• Chemical synthesis to confirm the structure of the novel compound.

Main Results:

• Isolation of a new chromanone alkaloid: 7-methoxy-3-[1-(3-pyridyl)methylidene]-4-chromanone (compound 1).
• Identification of four known compounds: dehydrotoxicarol (2), dehydrodeguelin (3), toxicarol isoflavone (4), and indole-3-carbaldehyde (5).
• Structural confirmation of compound 1 through independent synthesis.

Conclusions:

• The chemical investigation of Derris ovalifolia stem yielded a new chromanone alkaloid.
• The study expands the known phytochemical profile of Derris ovalifolia.
• The successful synthesis validates the proposed structure of the novel compound.