title: Cabraleahy-droxy-lactone from the leaves of Aglaia exima.
abstract: Cabraleahy-droxy-lactone, C(27)H(44)O(3), isolated from the leaves of Aglaia exima, has three six-membered rings fused together that adopt chair conformations. Its two five-membered rings are enveloped shaped. The hy-droxy group is in an axial position. It is a hydrogen-bond donor to the carbonyl O atom of an adjacent mol-ecule; the O-H⋯O inter-actions lead to the formation of a helical chain that runs along the b axis. There are two independent mol-ecules in the asymmetric unit.
authors.forename: Xe Min
authors.initials: XM
authors.lastname: Loong
authors.forename: Khalit
authors.initials: K
authors.lastname: Mohamad
authors.forename: Khalijah
authors.initials: K
authors.lastname: Awang
authors.forename: A Hamid
authors.initials: AH
authors.lastname: A Hadi
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng