Inhibition of diacylglycerol acyltransferase by prenylated flavonoids isolated from the stem bark of Maackia amurensis

Abstract

A new prenylated flavanone, erythraddison Z (1), together with eight known flavonoids (2–9), was isolated from the stem bark of Maackia amurensis. Their structures were elucidated on the basis of spectroscopic methods, including 1D and 2D NMR (COSY, HMQC, and HMBC) techniques. All the isolates, with the exception of 3, 6 and 7, strongly inhibited diacylglycerol acyltransferase activity in an in vitro assay with IC₅₀ values ranging from 96.5 ± 0.6 to 135.1 ± 1.4 μM.

Keywords::

• Leguminosae
• Maackia amurensis
• prenylated flavanone
• DGAT

Acknowledgements

This research was supported in part by the grants from the Project Sponsored by the State Education Ministry and Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules (Yanbian University), Ministry of Education, China (201305).