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 heterotetracyclic compound that is 11,12-dihydro-6H-6,12-epoxydibenzo[b,f]oxocine substituted by hydroxy groups at positions 4, 7 and 8, methoxy groups at positions 3 and 9, methyl groups at positions 6 and 12, an oxo group at position 11 and a formyl group at position 1. It is isolated as a racemate from Ascochyta and exhibits inhibitory activity against HIV-1 integrase.