Ontology highlight
ABSTRACT:
SUBMITTER: Xu H
PROVIDER: S-EPMC2959852 | biostudies-literature | 2008 Nov
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20081122 Pt 12
In the title compound, C(13)H(10)F(3)N(3)O(5), a derivative of andrographolide, the five-membered ring adopts an envelope conformation, while the non-planar six-membered ring has a chair conformation. An intra-molecular C-H⋯F hydrogen bond results in the formation of a non-planar six-membered ring adopting a twisted conformation. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. ...[more]