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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:66527 term browser browse the term
Definition:A diterpenoid that is 15,17-epoxypodocarpan-15-one substituted by a hydroxy group at position 13, methyl groups at positions 8 and 13 and a (5-methoxy-3,6-dioxocyclohexa-1,4-dien-1-yl)methyl group at position 14 (the 13alpha,14beta stereoisomer). Isolated from the marine sponge Petrosia corticata, it exhibits antineoplastic activity.
Synonyms:exact_synonym: 2-{[(13alpha,14beta)-13-hydroxy-8,13-dimethyl-15-oxo-15,17-epoxypodocarpan-14-yl]methyl}-6-methoxycyclohexa-2,5-diene-1,4-dione
 related_synonym: Formula=C27H36O6;   InChI=1S/C27H36O6/c1-24-10-6-20-25(2)8-5-9-27(20,15-33-23(25)30)19(24)7-11-26(3,31)21(24)13-16-12-17(28)14-18(32-4)22(16)29/h12,14,19-21,31H,5-11,13,15H2,1-4H3/t19-,20-,21-,24+,25-,26-,27-/m0/s1;   InChIKey=AMOGVPDDGBDGJG-FOMYWIRZSA-N;   SMILES=[H][C@]12CC[C@](C)(O)[C@@H](CC3=CC(=O)C=C(OC)C3=O)[C@]1(C)CC[C@@]1([H])[C@]3(C)CCC[C@]21COC3=O
 xref: PMID:15332859;   PMID:15897241;   PMID:17407351;   Reaxys:10738211

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  CHEBI ontology 19785
    role 19732
      application 19391
        pharmaceutical 19272
          drug 19272
            antineoplastic agent 16982
              strongylophorine-26 0
Path 2
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  CHEBI ontology 19785
    subatomic particle 19782
      composite particle 19782
        hadron 19782
          baryon 19782
            nucleon 19782
              atomic nucleus 19782
                atom 19782
                  main group element atom 19670
                    p-block element atom 19670
                      carbon group element atom 19572
                        carbon atom 19561
                          organic molecular entity 19561
                            organic group 18493
                              organic divalent group 18486
                                organodiyl group 18486
                                  carbonyl group 18389
                                    carbonyl compound 18389
                                      ketone 16140
                                        cyclic ketone 13810
                                          quinone 8336
                                            p-quinones 8241
                                              strongylophorine-26 0
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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.