2018, Vol. 6, Issue 5, Part B

author(s)
Akihiro Imadzu, Sachiko Sugimoto, Katsuyoshi Matsunami and Hideaki Otsuka

abstract
From the 1-BuOH-soluble fraction of a MeOH extract of Linaria canadensis, collected in the suburbs of Hiroshima City, four new iridoid glycosides (1‒4) were isolated, along with eight known compounds. By extensive spectroscopic analyses, the structures of new compounds were elucidated to be 6'-O-(E)-feruloyl, 6'-O-(Z)-feruloyl, 6-O-(E)-feruloyl and 6-O-(Z)-feruloyl antirrhinoides.