Targeted Isolation of Cytotoxic Sesquiterpene Lactones from Eupatorium fortunei by the NMR Annotation Tool, SMART 2.0.

ABSTRACT: Small Molecular Accurate Recognition Technology (SMART 2.0) has recently been introduced as a NMR-based machine learning tool for the discovery and characterization of natural products. We attempted targeted isolation of sesquiterpene lactones from Eupatorium fortunei with the aid of structural annotation by SMART 2.0 and chemical profiling. Eight germacrene-type (1-7 and 10) and two eudesmane-type sesquiterpene lactones (8 and 9) were isolated from the whole plant of Eupatorium fortunei. With the guidance of the results of the subfractions from E. fortunei obtained by SMART 2.0, their cytotoxic activities were evaluated against five cancer cells (SKOV3, A549, PC3, HEp-2, and MCF-7). Compounds 4 and 8 exhibited IC₅₀

SUBMITTER: Lee J 

PROVIDER: S-EPMC7513349 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature