A new stilbene dimer from Vitis amurensis.

Area of Science:

• Natural Product Chemistry
• Phytochemistry
• Organic Chemistry

Background:

• Vitis amurensis is a plant species known for its rich phytochemical profile.
• Stilbenes and their oligomers are compounds of interest due to their potential biological activities.
• Previous research has identified various bioactive compounds from Vitis species.

Purpose of the Study:

• To isolate and characterize novel stilbene derivatives from Vitis amurensis.
• To identify known stilbenoids present in the Vitis amurensis extract.
• To elucidate the chemical structures of isolated compounds using spectroscopic methods.

Main Methods:

• Phytochemical investigation of Vitis amurensis extract.
• Isolation of compounds using chromatographic techniques.
• Structure elucidation employing extensive spectroscopic analysis, particularly 2D Nuclear Magnetic Resonance (2D NMR).

Main Results:

• One new stilbene dimer, designated amurensin O, was successfully isolated.
• One known resveratrol trimer, melapinol B, was also identified.
• The structures of both compounds were definitively determined through comprehensive spectral data analysis.

Conclusions:

• Vitis amurensis is a valuable source of structurally diverse stilbenoids.
• Amurensin O represents a novel addition to the known stilbene dimer family.
• The identification of these compounds contributes to the understanding of Vitis amurensis phytochemistry.