Three New Phenolics and Other Constituents from the Seeds of Lithocarpus pachylepis

Abstract

Twelve phenolics, including the three new compounds balanophonin C (1), balanophonin D (2), balanophonin E (3), were isolated from the seeds of Lithocarpus pachylepis. Their structures were elucidated by various spectroscopic techniques (UV, IR, MS, 1D and 2D NMR). Compounds 1–9 were evaluated for their anti-inflammatory activities on lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW 264.7 and showed moderate inhibitory activities, with IC50 values ranging from 10.9 to 34.7 μM.

Keywords

• Fagaceae
• Lithocarpus pachylepis A Camus
• phenolics
• anti-inflammatory activities