“…In particular, two isomers (12,20) of o-coumaric acid glucoside (trans-and cis-melilotoside), previously reported in A. annua tea infusions [19], were detected at high levels in the leaves together with other hydroxycinnamate esters that include feruloyl moieties, such as two feruloylquinic acid isomers (19,21), one diferuloylquinic acid isomer (63) and ve caffeoylferuloylquinic acid isomers, one characterizing mostly the leaves (50) and the other ones the stems (45,51,54,59). Also, caffeoyl-(9, 15), dicaffeoyl- (33,34,37,38,40,61) and tricaffeoyl-(60, 65, 68) quinic acids were well represented in both leaves and stems within this species. Among the coumarins, the stems reported the highest levels of methoxycoumarin-O-hexoside (10).…”