Chemical constituents from Albatrellus confluence and their chemotaxonomic significance

The phytochemical study of the fruiting bodies of Albatrellus confluens afforded a new natural product methyl 2hydroxyimino-3- phenylpropionate (1), as well as 14 known compounds: phenylalanine (2), zarzissine (3), uridine (4), emeheterone (5), uracil (6), nicotinamide (7), adenosine (8)), methyl 4-hydroxyphenylacetate (9), grifolin (10), neogrifolin (11), grifolin methyl ether (12), 4-O-methyl grifolin acid (13), confluentin (14), albatrelin G (15). The structures of these compounds were deduced using spectroscopic methods, including IR, MS, 1D and 2D NMR, as well as by comparisons with data reported in the literature. Furthermore, the chemotaxonomic significance of the isolates was also discussed.