title: Cadinane sesquiterpenes from Curcuma parviflora.
abstract: Two new cadinane sesquiterpenes (1 and 2) were isolated from Curcuma parviflora, and their structures were elucidated by spectroscopic data. Compound 1, 4alpha-acetoxycadina-2,9-diene-1,8-dione, possesses two conjugated enone chromophores, while compound 2, 1alpha,3alpha,4beta-trihydroxy-9-cadinen-8-one, has an enone moiety with three hydroxy groups. Isolation of these cadinane monomers may reasonably suggest that parviflorenes are biogenetically classified as cadinane dimers.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan.
authors.forename: Samir Kumar
authors.initials: SK
authors.lastname: Sadhu
authors.forename: Mayu
authors.initials: M
authors.lastname: Tamaki
authors.forename: Takashi
authors.initials: T
authors.lastname: Ohtsuki
authors.forename: Kazufumi
authors.initials: K
authors.lastname: Toume
authors.forename: Takashi
authors.initials: T
authors.lastname: Koyano
authors.forename: Thaworn
authors.initials: T
authors.lastname: Kowithayakorn
authors.forename: Masami
authors.initials: M
authors.lastname: Ishibashi
mesh_terms: D030024:Curcuma / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013785:Thailand
chemical_list: C540702:1alpha,3alpha,4beta-trihydroxy-9-cadinen-8-one; C540703:4alpha-acetoxycadina-2,9-diene-1,8-dione; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C508039:cadinane