SIX NOVEL DIARYLHEPTANOIDS BEARING CHALCONE OR FLAVANONE MOIETY FROM THE SEEDS OF ALPINIA BLEPHAROCALYX

摘要

Six novel diarylheptanoids bearing chalcone or flavanone moiety (1-6) were isolated from the seeds of Alpinia blepharocalyx K. Schum. Their structures were determined by spectroscopic analysis. Stereo-chemical assignment of diarylheptanoid part of these compounds was done by NMR spectral analysis of their MTPA eaters. These compounds inhibited nitric oxide (NO) production in endotoxin-activated murine macrophages, J774.1. (C) 1997 Elsevier Science Ltd. [References: 14]