Ontology highlight
ABSTRACT:
SUBMITTER: Aree T
PROVIDER: S-EPMC3008009 | biostudies-literature | 2010 Aug
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20100828 Pt 9
IN THE TITLE COUMARIN COMPOUND (SYSTEMATIC NAME: 6-butyryl-5-hy-droxy-8,8-dimethyl-4-phenyl-2H,8H-benzo[1,2-b;3,4-b']dipyran-2-one), C(24)H(22)O(5), also known as mammea A/AC cyclo D, the chromene and pyran rings are almost coplanar with a maximum deviation from the mean plane of 0.295 (2) Å. The attached phenyl group is inclined at 53.49 (8)° with respect to the chromene ring. The mol-ecular structure is stabilized by an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules are linked ...[more]