Compound 1 and 2 could be speculated as biogenetically formed from the esterification of chebulic acid and 1-galloyglucopyanose precursors either by two isoforms of a specific esterase or by one less specific esterase showing some level of selectivity for the production of 1, as indicative of their relative yields (section 2.3). While 1-galloylglucopyranose could be easily imagined as derived from glucosidase hydrolytic activities on polygalloylglucosegallotannins, the biosynthesis of chebulic acid (4) could be conjectured as associated with that of ellagic acid (8) as follows : Ellagic acid (8) could, as widely assumed