title: (2S*,3S*,3aS*,6S*,7aR*)-3-Hy-droxy-2-[(2R*,3S*)-3-isopropyl-oxiran-2-yl]-3,6-dimethyl-3,3a,5,6,7,7a-hexa-hydro-1-benzofuran-4(2H)-one.
abstract: In the title compound, C(15)H(24)O(4), the six-membered ring shows a distorted chair conformation and the five-membered ring adopts an envelope conformation with the C atom bearing the methyl and OH groups as the flap. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into chains running along the a-axis direction.
authors.affiliation: Hubei Key Laboratory of Natural Products Research and Development, College of Chemistry and Life Sciences, China Three Gorges University, Yichang, Hubei 443002,  People's Republic of China.
authors.forename: Mingruo
authors.initials: M
authors.lastname: Ding
authors.forename: Qiaoyin
authors.initials: Q
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Chen
authors.forename: Nianyu
authors.initials: N
authors.lastname: Huang
authors.forename: Junzhi
authors.initials: J
authors.lastname: Wang