Flavonoids and phenol glycosides from Boerhavia diffusa

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Medicinal Plant Research

Background:

• Boerhavia diffusa is a plant with a history of traditional medicinal use.
• Investigating the chemical constituents of medicinal plants can reveal novel bioactive compounds.
• Understanding the phytochemical profile of Boerhavia diffusa is crucial for its pharmacological applications.

Purpose of the Study:

• To isolate and characterize new chemical compounds from Boerhavia diffusa.
• To elucidate the structures of these novel compounds using spectroscopic methods.
• To identify known compounds present in the plant extract.

Main Methods:

• Extraction of compounds from Boerhavia diffusa.
• Isolation of individual compounds using chromatographic techniques.
• Structure elucidation through comprehensive spectroscopic analysis (e.g., NMR, MS).

Main Results:

• Four new compounds were successfully isolated and identified: eupalitin 3-O-beta-D-galactopyranosyl-(1''' --> 2'')-O-beta-D-galactopyranoside (1), 3,3',5-trihydroxy-7-methoxyflavone (4), 4',7-dihydroxy-3'-methylflavone (5), and 3,4-dimethoxyphenyl-1-O-beta-D-apiofuranosyl-(1'' --> 3')-O-beta-D-glucopyranoside (7).
• Eight known compounds were also identified in the extract.
• The structures of all isolated compounds were confirmed via detailed spectroscopic data analysis.

Conclusions:

• The phytochemical investigation of Boerhavia diffusa led to the discovery of four novel compounds.
• The identified compounds contribute to the known chemical diversity of Boerhavia diffusa.
• Further research into the biological activities of these isolated compounds is warranted.