title: Conformational analysis. CII. Levopimaric acid and related steroidal dienes.
mesh_terms: D002264:Carboxylic Acids / Q000032:analysis; D002774:Cholestadienes / Q000032:analysis*; D002782:Cholestenes / Q000032:analysis*; D002942:Circular Dichroism; D004735:Energy Transfer; D008968:Molecular Conformation; D010616:Phenanthrenes / Q000032:analysis*
chemical_list: D002264:Carboxylic Acids; D002774:Cholestadienes; D002782:Cholestenes; D010616:Phenanthrenes