product, nigricanin (1), was synthesized through an intramolecular biaryl coupling reaction of the phenyl benzoate derivative which was derivedfrom the corresponding phenol and benzoic acid. INTRODUCTION Ellagicacid and its family are well known to exhibit a wide range of biological activities, such as antioxidant and anti-cancer properties. Because of their polyphenolic structures, ellagicacid and its
of 2-bromo-3,4-dialkoxybenzaldehyde (4) followed by the Cannizzaro reaction for desymmetrization of the symmetric biaryl compound (5). Compared to our previously reported study, the presented synthesisimproved the sequence step number.
Nigricanin, the First Ellagic Acid Derived Metabolite from the BasidiomyceteRussula nigricans
作者:Jian-Wen Tan、Ji-Bin Xu、Ze-Jun Dong、Du-Qiang Luo、Ji-Kai Liu
DOI:10.1002/hlca.200490074
日期:2004.4
Nigricanin (1), the first ellagic acid related derivativefrom higher fungi, has been isolated from the fruitingbodies of the Basidiomycetes Russula nigricans. The structure of the novel compound was established by spectroscopic and chemical methods.