Biflavonoids, Lignans, and Related Compounds from the Roots ofDiplomorpha canescens

Two new biflavonoids, 14″‐ O ‐methyldihydrodaphnodorin B ( 1 ) and 14″‐ O ‐methyldaphnodorin J ( 2 ), along with 16 known compounds, i.e. , dihydrodaphnodorin B ( 3 ), daphnodorin J ( 4 ), 3″‐epidihydrodaphnodorin B ( 5 ), daphnodorin B ( 6 ), neochamaejasmin B ( 7 ), sikokianin B ( 8 ), (−)‐syringaresinol ( 9 ), (−)‐syringaresinol 4‐ O ‐ β ‐ D ‐glucopyranoside ( 10 ), (+)‐nortrachelogenin ( 11 ), (−)‐lariciresinol ( 12 ), (−)‐pinoresinol ( 13...