Chemotaxonomic significance of sesquiterpenes and amide derivatives from Chloranthus angustifolius Oliv.

• Seven sesquiterpenes and six amide derivatives were isolated from Chloranthus angustifolius.
• The six amide derivatives have not yet been reported in Chloranthaceae.
• The chemotaxonomic significance of the isolates was discussed.

Phytochemical investigation of the aerial parts of Chloranthus angustifolius Oliv. (Chloranthaceae) resulted in the isolation and characterization of seven sesquiterpenes (1–7) and six amide derivatives (8–13). All structures were established based on analysis of their spectroscopic data. This is the first report of compounds 2 and 8–13 from the family Chloranthaceae, and the first report of compounds 3–5 from C. angustifolius. Moreover, the chemotaxonomic significance of these compounds was summarized.