Benzopyranones and ferulic acid derivatives from Antidesma membranaceum

From Antidesma membrananeum, besides three feruloyl amides and (−)-syringaresinol, new phenolic compounds have been isolated. Their structures were established as two series of 2-alkylated 5,7-dihydroxychromones and 2,5,7-trihydroxychromanones, and the dimeric compound, 8,8-bis-(dihydroconiferyl)-diferuloylate, respectively, from their spectroscopic data.