Unusual nitrogenous derivatives from Alstonia

Area of Science:

• Natural Product Chemistry
• Phytochemistry
• Organic Chemistry

Background:

• Alstonia angustifolia is a plant species with a history of traditional medicinal use.
• The chemical constituents of Alstonia species are of interest for potential pharmacological activities.

Purpose of the Study:

• To isolate and characterize new chemical compounds from the Malayan Alstonia angustifolia.
• To determine the structures of these novel compounds using spectroscopic methods.

Main Methods:

• Extraction of secondary metabolites from Alstonia angustifolia plant material.
• Chromatographic separation techniques for isolating individual compounds.
• Spectroscopic analysis, including NMR and Mass Spectrometry, for structure elucidation.

Main Results:

• Isolation of five previously undescribed nitrogenous compounds.
• Determination of the complete chemical structures of the five new compounds.
• Confirmation of the compounds' nitrogenous nature.

Conclusions:

• The study expands the known phytochemical profile of Alstonia angustifolia.
• The identified nitrogenous compounds represent novel chemical entities.
• Further research may explore the biological activities of these new compounds.