title: Isolation and structure elucidation of 12beta-acetoxycoccinic Acid, 12beta-hydroxycoccinic Acid, 12alpha-acetoxycoccinic Acid, and 12alpha-hydroxycoccinic acid1.
abstract: Four new triterpenoid acids, possessing a lanost-9(11)-en-3-one skeleton, were isolated from KADSURA HETEROCLITA. Based on chemical and spectral analyses, they were assigned as 12beta-acetoxycoccinic acid, 12beta-hydroxycoccinic acid, 12alpha-acetoxycoccinic acid, and 12alpha-hydroxycoccinic acid.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing 100050, People's Republic of China.
authors.forename: L
authors.initials: L
authors.lastname: Lian-Niang
authors.forename: X
authors.initials: X
authors.lastname: Hong
authors.forename: K
authors.initials: K
authors.lastname: Kangouri
authors.forename: A
authors.initials: A
authors.lastname: Kawashima
authors.forename: S
authors.initials: S
authors.lastname: Omura