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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC 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.

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Accession:CHEBI:142639 term browser browse the term
Definition:A member of the class of nectriapyrones that is pyran-2-one which is substituted at positions 3, 4, and 6 by methyl, methoxy, and but-2-en-2-yl groups, respectively in which the butenyl substituent has E configuration. A fungal metabolite that has been induced in the rice blast fungus Pyricularia oryzae by overexpression of a polyketide synthase gene (NEC1) and an O-methyltransferase gene (NEC2).
Synonyms:exact_synonym: 6-[(2E)-but-2-en-2-yl]-4-methoxy-3-methyl-2H-pyran-2-one
 related_synonym: Formula=C11H14O3;   InChI=1S/C11H14O3/c1-5-7(2)9-6-10(13-4)8(3)11(12)14-9/h5-6H,1-4H3/b7-5+;   InChIKey=NRLCQITWKJENAT-FNORWQNLSA-N;   SMILES=C=1(C=C(OC(C1C)=O)/C(/C)=C/C)OC
 xref: AGR:IND44575933;   PMID:25700035;   PMID:26001271;   PMID:26137688;   PMID:27417331;   PMID:30443971

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Term Annotations click to browse term
  CHEBI ontology 19823
    role 19773
      biological role 19773
        biochemical role 19390
          metabolite 19367
            eukaryotic metabolite 19054
              fungal metabolite 17501
                nectriapyrone 0
                  nectriapyrone D 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19823
    subatomic particle 19821
      composite particle 19821
        hadron 19821
          baryon 19821
            nucleon 19821
              atomic nucleus 19821
                atom 19821
                  main group element atom 19720
                    p-block element atom 19720
                      carbon group element atom 19643
                        carbon atom 19633
                          organic molecular entity 19633
                            organic group 18739
                              organic divalent group 18730
                                organodiyl group 18730
                                  carbonyl group 18678
                                    carbonyl compound 18678
                                      carboxylic ester 15884
                                        lactone 11248
                                          delta-lactone 3881
                                            2-pyranones 754
                                              nectriapyrones 0
                                                desmethylnectriapyrone 0
                                                  nectriapyrone 0
                                                    nectriapyrone D 0
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