Phytochemical investigation of the roots of Adenophora triphylla yielded a new phenylpropanoid, adenophoride (1) and a new polyacetylene, adenylene (7) along with four phenylpropanoids and a polyacetylene. The structures were determined by spectroscopic analysis including NMR, MS, UV and IR. Among the isolated compounds, phenylpropanoids including a new compound showed mild α-glucosidase inhibitory activities.
Keywords: Adenophora triphylla; phenylpropanoid; polyacetylene; α-glucosidase.