title: Novel flavonoids of Thelypteris torresiana.
abstract: In our continuing research on cytotoxic components from the Formosan pteridophyte Thelypteris torresiana (GAUD.) ALSTONONE, two new compounds, a novel flavonoid, flavotorresin (1), and a flavonoid diglycoside, multiflorin C (2), along with five known compounds, were isolated. The structural elucidation was established on the basis of spectroscopic data analysis. The possible biosynthetic pathway of the flavonoids from this fern is summarized.
authors.affiliation: Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung, Taiwan.
authors.forename: An-Shen
authors.initials: AS
authors.lastname: Lin
authors.forename: Fang-Rong
authors.initials: FR
authors.lastname: Chang
authors.forename: Hsin-Fu
authors.initials: HF
authors.lastname: Yen
authors.forename: HannaMaria
authors.initials: H
authors.lastname: Björkeborn
authors.forename: Per
authors.initials: P
authors.lastname: Norlén
authors.forename: Yang-Chang
authors.initials: YC
authors.lastname: Wu
mesh_terms: D029624:Ferns / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D005419:Flavonoids