5α-Hy-droxy-eudesm-4(15),11(13)-dien-8β,12-olide.

ABSTRACT: The title compound, C(15)H(20)O(3), a sesquiterpene lactone, was isolated from the aerial parts of Carpesium minus Hemsl. (Compositae). The mol-ecule is composed of three rings, with the two cyclo-hexane rings in chair conformations and the cyclo-pentane ring adopting a twist conformation. The A/B ring junction is trans-fused. The absolute configuration shown has been arbitrarily assigned. In the crystal, mol-ecules are linked into [100] chains by O-H⋯O hydrogen bonds.

SUBMITTER: Gao X 

PROVIDER: S-EPMC3344144 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature