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.

SUBMITTER: Loong XM 

PROVIDER: S-EPMC2983197 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature