From Asiasarum sieboldii 3 new compounds, the monoterpene derivative asiasa
rinol (3), the iridoid glycoside 6-O-(3,4-dimethoxy-)cinnamoyl-ajugol (14)
and the isobutylamide asaramid (15) were isolated besides twelve other, for
the genus Asarum partly unknown compounds. Their structures were elucidate
d by spectroscopic methods. Four of these ingredients were detected as mixt
ures of E/Z isomeres.