Chemical constituents and their bioactivities from the fruits of Vitex negundo var. cannabifolia

Abstract

Phytochemical investigation of the fruits of Vitex negundo var. cannabifolia led to the isolation of 22 compounds (1–22). Their structures were elucidated mainly by spectroscopic analysis and comparison with the literature data. Among them, compounds 1 and 2 were two new artificial lignans. Primary bioassay showed that the polymethoxyflavones 9–12 displayed moderate-to-weak cytotoxicity against human HepG2 and rat C6 cell lines, while the triterpenoids 13–17 exhibited significant brine shrimp lethality with LC₅₀values of 7.5–29.4 μM.

Keywords:

• Vitex negundo var. cannabifolia
• chemical constituent
• cytotoxicity
• brine shrimp lethality

Funding

This work was financially supported by the National Natural Science Foundation of China [grant number 21202198]; the Projects of Natural Key Technology Research and Development Program of the Ministry of Science and Technology of China [grant number 2011BAC02B04].