Phenylpropanoid glycosides from the seeds of Michelia hedyosperma

The seed of Michelia hedyosperma Law (Magnoliaceae) is a commonly used spice by the local people living in the south of Yunnan province, China. From which, six new phenylpropanoid glycosides, michehedyosides A–F (1–6) were obtained, in addition to six known compounds, eugenol, eugenol 4-O-β-d-glucopyranoside, martynoside, alaschanioside C, 3,4-methylenedioxycinnamyl alcohol, and (+)-pinoresinol 4-O-β-d-glucoside. Their structures were elucidated on the basis of detailed spectroscopic analyses and chemical methods.