| Synonyms: |
(3aS)-3,3aalpha,4alpha,4a,7aalpha,8,9,9aalpha-octahydro-4-hydroxy-4abeta,8alpha-dimethyl-3-methyleneazuleno(6,5-b)-furan-2,5-dione,
(3aS,4S,4aR,7aR,8R,9aR)-4-hydroxy-4a,8-dimethyl-3-methylidene-3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione,
6alpha,8beta-dihydroxy-4-oxoambrosa-2,11(13)-dien-12-oic acid 12,8-lactone,
Helenalin A
|
| Definition: |
A sesquiterpene lactone that is 3,3a,4,4a,7a,8,9,9a-octahydroazuleno[6,5-b]furan-2,5-dione substituted by a hydroxy group at position 4, methyl groups at positions 4a and 8 and a methylidene group at position 3 (the 3aS,4S,4aR,7aR,8R,9aR stereoisomer). |