title: Paratunamides A-D, oxindole alkaloids from Cinnamodendron axillare.
abstract: Four new oxindole alkaloids, paratunamides A-D (1-4), containing a secologanin unit, were isolated from the bark of Cinnamodendron axillare, and their structures and relative configurations were elucidated by spectroscopic data. The absolute configuration at C-7 in 1-4 was assigned as S, S, R, and S, respectively, on the basis of the CD spectra.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
authors.forename: Toshinori
authors.initials: T
authors.lastname: Kagata
authors.forename: Shizuka
authors.initials: S
authors.lastname: Saito
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Shigemori
authors.forename: Ayumi
authors.initials: A
authors.lastname: Ohsaki
authors.forename: Haruaki
authors.initials: H
authors.lastname: Ishiyama
authors.forename: Takaaki
authors.initials: T
authors.lastname: Kubota
authors.forename: Jun'ichi
authors.initials: J
authors.lastname: Kobayashi
mesh_terms: D001938:Brazil; D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D029562:Magnoliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D026121:Indole Alkaloids