Ontology highlight
ABSTRACT:
SUBMITTER: Wu Y
PROVIDER: S-EPMC3275241 | biostudies-literature | 2012 Feb
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20120121 Pt 2
The title compound, C(31)H(44)O(5), was synthesized from isostev-iol (systematic name: ent-16-ketobeyeran-19-oic acid). In the mol-ecule, the three six-membered rings adopt chair conformations and the stereochemistry of the A/B and B/C ring junctions are trans. The five-membered ring D adopts an envelope conformation with the methyl-ene C atom as the flap. ...[more]