Furanoid and furofuranoid lignans from Daphne oleoides

Furofuranoid lignan (1) and (2) and furanoid lignan (3) have been isolated from Daphne oleoides and their structures elucidated through chemical and s pectroscopic studies as 2-(3'-methoxy-4'-O-alpha -D-galactopyranosylphenyl) -6-(3"-methoxy-4"-hydroxyphenyl)-3,7-dioxabi-cyclo[3.3.0]octane (1), 2-(3', 5'-dimethoxy-4'-O-alpha -D-galactopyraanosyphenyl)-6-(3"-methoxy- 4"-hydrox yphenyl)-3,7-dioxabicyclo[3.3.0]octane (2), and 4,9'-dihydroxy-3,3'-dimetho xy-4'-O-beta -D-glucopyranosy)-7',9-epoxylignan (3). Two known lignans (4) and (5) have also been reported for the first time from this species.