Two New Phenylethanoid Glycosides from Callicarpa longissima

Two new phenylethanoid glycosides, longissimosides A and B ( 1 and 2 , resp.), together with eight structurally related known compounds, were isolated from the EtOH extract of leaves and stems of Callicarpa longissima ( Hemsl .) Merr . The structures of 1 and 2 were elucidated as 2‐(3,4‐dihydroxyphenyl)ethyl O ‐( α ‐ L ‐rhamnopyranosyl)‐(1→3)‐ O ‐(2‐ O ‐syringoyl‐ β ‐ D ‐xylopyranosyl)‐(1→6)‐ 4‐ O ‐[( E )‐caffeoyl]‐ β ‐ D ‐glucopyranoside ( 1 ) and 2‐(3‐hydroxy‐4‐methoxyphenyl)ethyl O ‐( α ‐ L ‐rhamnopyranosyl)‐(1→3)‐ O ‐( β ‐ D ‐apiofuranosyl)‐(1→6)‐4‐ O ‐[( E ) ‐ isoferuloyl]‐ β ‐ D ‐glucopyranoside ( 2 ) on the basis of spectroscopic data and acid hydrolysis.