title: Three new isoprenylated flavonoids from the roots of Sophora flavescens.
abstract: Three new flavonoids isoprenylated as 2,2-dimethyl-dihydropyran groups, named sophoranodichromanes A-C (1-3), have been isolated from the roots of Sophora flavescens, together with the known compounds, chrysophanol (4), soyasapogenol B (5) and beta-sitosterol (6). Their structures have been elucidated by spectroscopic methods.
authors.affiliation: Department of Pharmacognosy, School of Pharmacy, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China.
authors.forename: Pei-Lan
authors.initials: PL
authors.lastname: Ding
authors.forename: Ai-Jun
authors.initials: AJ
authors.lastname: Hou
authors.forename: Dao-Feng
authors.initials: DF
authors.lastname: Chen
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D018517:Plant Roots / Q000737:chemistry*; D017368:Protein Prenylation; D029909:Sophora / Q000737:chemistry*
chemical_list: D005419:Flavonoids; C497548:sophoranodichromane A; C497547:sophoranodichromane B; C497546:sophoranodichromane C