title: Two new diterpenoid dimers, fritillebinide D and E, from bulbs of Fritillaria ebeiensis.
abstract: Two new ent-kaurane diterpenoid dimers, fritillebinide D (1) and fritillebinide E (2), were isolated from bulbs of Fritillaria ebeiensis G.D. Yu et G.Q. Ji. Their structures have been determined to be ent-3beta-acetoxy-kauran-16beta, 17-acetal ent-3beta-acetoxy-16beta-kauran-17(R)-aldehyde (1) and ent-3beta-acetoxy-kauran-16beta,17-acetal ent-3beta-acetoxy-16beta-kauran-17(S)-aldehyde (2) by means of spectral analysis.
authors.affiliation: Faculty of Pharmaceutical Sciences, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China.
authors.forename: Han-Li
authors.initials: HL
authors.lastname: Ruan
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Zhang
authors.forename: Ji-Zhou
authors.initials: JZ
authors.lastname: Wu
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Fujita
mesh_terms: D004224:Diterpenes / Q000737:chemistry; D031410:Fritillaria / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004224:Diterpenes; D013729:Terpenes; C473381:fritillebinide D; C473382:fritillebinide E