title: Catunarosides I-L, four new triterpenoid saponins from the stem bark of Catunaregam spinosa.
abstract: Four new triterpenoid saponins, Catunaroside I [3-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranosyl-arjunic acid 28-O-β-D-glucopyranoside] (1), Catunaroside J [3-O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-arjunic acid 28-O-β-D-glucopyranoside] (2), Catunaroside K [3-O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-tormentic acid] (3), and Catunaroside L [3-O-β-D-glucopyranosyl-(1→2)-[β-D-glucopyranosyl-(1→3)]-β-D-glucopyranosyl-pomolic acid] (4), and two known triterpenoid saponin Arjunetoside (5) and Randiasaponin VII (6), were isolated from the stem bark of Catunaregam spinosa. Their structures were elucidated on the basis of their spectral data and chemical evidence.
authors.affiliation: Key Laboratory of Natural Medicine and Health Food R & D Technology, College of Medicine, Jiaxing University; No. 118, JiaHang Road, Jiaxing 314001, P. R. China; Jiaxing Academy of Agricultural Sciences; ShuangQiao Road, Jiaxing 314016, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Xuan
authors.initials: X
authors.lastname: Huang
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Jiang
authors.forename: Qi-Feng
authors.initials: QF
authors.lastname: Zhu
authors.forename: Yun
authors.initials: Y
authors.lastname: Yang
authors.forename: Guang-Chun
authors.initials: GC
authors.lastname: Gao
mesh_terms: D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*; D019666:Rubiaceae / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D012503:Saponins; D014315:Triterpenes