6β-Hydroxyeremophil-7(11)-en-8β,12-olide

Abstract

The title eremophilenolide, C15H22O3, is a natural compound isolated from Senecio laetus Edgew. The two cis-fused six-membered rings have chair confomations and the five-membered ring has a planar envelope conformation [maximum deviation = 0.010 (1) Å]. The β-hydroxy group participates in intermolecular O—H...O hydrogen bonding, forming molecular chains along the a axis.