title: Amurensiosides A-K, 11 new pregnane glycosides from the roots of Adonis amurensis.
abstract: Five new pregnane tetraglycosides, amurensiosides A-E (1-5), two new pregnane hexaglycosides, amurensiosides F (6) and I (9), two new 18-norpregnane hexaglycosides, amurensiosides G (7) and H (8), and two new pregnane octaglycosides, amurensiosides J (10) and K (11), were isolated from the MeOH extract of the roots of Adonis amurensis. The structures of the new compounds were determined on the basis of extensive spectroscopic analysis, including two-dimensional (2D) NMR data, and the results of hydrolytic cleavage. The isolated compounds were evaluated for their cytotoxic activity against HSC-2 human oral squamous cell carcinoma cells.
authors.affiliation: School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1, Horinouchi, Hachioji, Tokyo 192-0392, Japan. kurodam@toyaku.ac.jp
authors.forename: Minpei
authors.initials: M
authors.lastname: Kuroda
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kubo
authors.forename: Shingo
authors.initials: S
authors.lastname: Uchida
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sakagami
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Mimaki
mesh_terms: D031843:Adonis / Q000737:chemistry*; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D002240:Carbohydrate Sequence; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D000432:Methanol / Q000737:chemistry; D008969:Molecular Sequence Data; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D018517:Plant Roots / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D013329:Structure-Activity Relationship
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010936:Plant Extracts; D012503:Saponins; D000432:Methanol