“…The spectroscopic data was first described except for the mass spectra. The 47 known compounds were identified as (-)-epiafzelechin (2) [52], (+)-catechin (3) [53], (-)-epicatechin (4) [40], (-)-epiafzelechin-5-O-β-D -glucoside (5) [54], wogonin (6) [55], genkwanin (7) [56], tricin (8) [57], vitexin (9) [58], tricin-7-O-β-D -glucoside (10) [59], isorhamnetin-3-O-β-D -glucoside (11) [60], astilbin (12) [61], (7S,8R)-dihydrodehydrodiconiferyl alcohol (13) [62], (7S,8R)-5-methoxydihydrodehydroconiferyl alcohol ( 14) [63], (7S,8R)-9,9 ′ -dihydroxyl-3,3 ′ -dimethoxyl-4-O-glycerol-7,8-dihydrobenzofuran-1 ′ -propanolneoligan (15) [64], (7S,8R)-dihydrodehydrodiconiferyl alcohol-4-O-β-D -glucopyranoside ( 16) [65], (7S,8R)-dihydrodehydrodiconiferyl alcohol-9 ′ -O-β-D -glucoside (17) [66], (7S,8R)-3,3′-dimethoxy-4-9-9′-trihydroxy-4′,7epoxy-5,8′-lignan-4,9-bis-O-β-D -glucopyranoside (18) [67], threo-(7S,8S)-guaiacyl-glycerol-β-O-4′-dihydroconiferyl ether (19) (26) [73], salicifoliol (27) [74], 4-ketopinoresinol (28) [75], (+)-pinoresinol (29) [76], (+)-medioresinol (30) [77], (+)-syringaresinol (31) [78], (7R,7 ′ R,7 ″ R,8S,8 ′ S,8 ″ S)-4 ′ ,4 ″ -dihydroxy-3,3 ′ ,3 ″triethoxy-7,9 ′ :7 ′ ,9-diepoxy-4,8 ″ -oxy-8,8 ′ -sesquineolignan-7 ″ ,9 ″ -diol (32) [78], (7S,7 ′ S,7 ″ S,8R,8 ′ R,8 ″ R)-4 ′ ,4 ″ -dihydroxy-3,3 ′ ,3 ″ ,5-tetramethoxy-7,9 ′ :7 ′ ,9-diepoxy-4,8 ″ -oxy-8,8 ′ -sesquineolignan-7 ″ ,9 ″ -diol (33) [78], (7R,7 ′ R,7 ″ R,8S,8 ′ S,8 ″ S)-4 ′ ,4 ″ -dihydroxy-3,3 ′ ,3 ″ ,5-tetramethoxy-7,9′:7′,9diepoxy-4,8″-oxy-8,8′-sesquineolignan-7″,9″-diol (34)…”