title: [New diterpenoids, isodoternifolins A and B, from Isodon ternifolius].
abstract: Two new diterpenoids, named isodoternifolin A and B, together with seven known compounds were isolated from the ethanol extract of dried stems and leaves of Isodon ternifolius (D. Don) Kudo. Their structures were determined as 7 beta-hydroxy-6 beta, 11 alpha, 15 beta-triacetoxy-7 alpha, 20-epoxyentkaur-16-ene (1) and 6 beta, 7 beta, 15 beta-trihydroxy-11 alpha-acetoxy-7 alpha, 20-epoxy-entkaur-16-ene (2) by chemical and spectral evidence.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing.
authors.forename: Z M
authors.initials: ZM
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Feng
authors.forename: X T
authors.initials: XT
authors.lastname: Liang
authors.forename: S T
authors.initials: ST
authors.lastname: Yuan
authors.forename: M J
authors.initials: MJ
authors.lastname: Xu
mesh_terms: D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D019686:Lamiaceae / Q000737:chemistry*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D004224:Diterpenes; C117160:isodoternifolin A; C117161:isodoternifolin B