title: Structure of Tripterygic Acid A: A New Triterpene of Tripterygium wilfordii.
abstract: From roots of TRIPTERYGIUM WILFORDII used in Chinese folk medicine, a new ursane-triterpene named tripterygic acid A was isolated along with a known triterpene and their structures were elucidated by means of spectral analysis and chemical transformation.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China.
authors.forename: D M
authors.initials: DM
authors.lastname: Zhang
authors.forename: D Q
authors.initials: DQ
authors.lastname: Yu