title: Diterpenoids from the flowers of Rhododendron molle.
abstract: Five new grayanane-type diterpenoids, rhodomolleins IX (1), X (2), XI (3), XII (4), and XIII (5), a new kalmane-type diterpenoid, rhodomollein XIV (6), and seven known diterpenoids, grayanotoxin II, rhodomolleins I and XIX, rhodojaponins II, III, and VI (7), and kalmanol, were isolated from the flowers of Rhododendron molle. The structures of 1-6 were elucidated by spectroscopic methods, including 1D and 2D NMR experiments.
authors.affiliation: Shanghai Institute of Materia Medica, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China.
authors.forename: Shao-Nong
authors.initials: SN
authors.lastname: Chen
authors.forename: Hua-Ping
authors.initials: HP
authors.lastname: Zhang
authors.forename: Li-Quan
authors.initials: LQ
authors.lastname: Wang
authors.forename: Guan-Hu
authors.initials: GH
authors.lastname: Bao
authors.forename: Guo-Wei
authors.initials: GW
authors.lastname: Qin
mesh_terms: D002681:China; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D035264:Flowers / Q000737:chemistry; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D029793:Rhododendron / Q000737:chemistry*
chemical_list: D004224:Diterpenes