Ontology highlight
ABSTRACT:
SUBMITTER: Asik SI
PROVIDER: S-EPMC3009237 | biostudies-literature | 2010 Oct
REPOSITORIES: biostudies-literature
Asik Safra Izuani Jama SI Razak Ibrahim Abdul IA Salae Abdul Wahab AW Chantrapromma Suchada S Fun Hoong-Kun HK
Acta crystallographica. Section E, Structure reports online 20101023 Pt 11
In the title compound, C(20)H(28)O(4), a diterpenoid isolated from the roots of Premna obtusifolia (Verbenaceae), the five-membered ring is in a half-chair conformation. One six-membered ring exists in a twisted-boat conformation while the other is in half-boat conformation. The crystal packing is stabilized by inter-molecular O-H⋯O and weak C-H⋯O inter-actions, generating (001) sheets. ...[more]