Schumannione, a new butenolide derivative isolated from Schumannianthus dichotomus as a potential phytotoxic agent

摘要

Schumannione, a new butenolide derivative, was isolated from the leaves of Schumannianthus dichotomus through phytotoxic assay-guided fractionation. The structure of the compound was elucidated by detailed spectroscopic analysis including ECD spectra. Schumannione displayed significant phytotoxicity against timothy and cress with a minimum 10 mu M concentration having IC50 values ranging from 109.8 to 160.9 mu M, indicating it might play a role in the phytotoxic potential of S. dichotomus. (C) 2020 Elsevier Ltd. All rights reserved.