The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
An indole alkaloid that is 1,3-dihydro-2H-indol-2-one substituted by a methoxy(phenyl)methylidene group at position 3 (the 3E stereoisomer). Isolated from Isatis costata, it exhibits antifungal activity.