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.
A naphthochromene that is 4H-naphtho[2,3-h]chromene which is substituted at position 2 by a (2R)-butan-2-yl group, at position 5 by a hydroxymethyl group, at position 11 by a hydroxy group, and at positions 4, 7, and 12 by oxogroups. An antibiotic isolated from Streptomyces sp. cu39, it exerts a potent protecting effect on neuronal cells through suppressing L-glutamate toxicity.