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 organic heterotricyclic compound that is 4,10-dihydro-1H,3H-pyrano[4,3-b]chromene substituted by hydroxy groups at positions 7 and 8, a methoxy group at position 1, a methyl group at position 3, an oxo group at position 10 and a carboxy group at position 9. Isolated from Chaetomium funicola it exhibits inhibitory activity against metallo-beta-lactamases.