Tetralones and Flavonoids from  Pyrola calliantha | Zendy

Liu Lei | Zendy; Li AnLiang | Zendy; Zhao MingBo | Zendy; Tu PengFei | Zendy

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Tetralones and Flavonoids from Pyrola calliantha

Author(s) -

Liu Lei,

Li AnLiang,

Zhao MingBo,

Tu PengFei

Publication year - 2007

Publication title -

chemistry and biodiversity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.427

H-Index - 70

eISSN - 1612-1880

pISSN - 1612-1872

DOI - 10.1002/cbdv.200790242

Subject(s) - chemistry , formononetin , kaempferol , quercetin , stereochemistry , glycoside , tetralones , organic chemistry , biology , daidzein , genistein , antioxidant , endocrinology

Two new tetralones, pyrolones A ( 1 ) and B ( 2 ), and a new flavonol glycoside, 2″‐ O ‐(4‐hydroxybenzoyl)hyperin ( 3 ), were isolated from Pyrola calliantha (whole plant), together with six structurally related compounds, including 2″‐ O ‐galloylhyperin ( 4 ), hyperin ( 5 ), formononetin ( 6 ), quercetin 3‐ O ‐ α ‐ L ‐arabinopyranoside ( 7 ), quercetin 3‐ O ‐ α ‐ L ‐arabinofuranoside ( 8 ), and kaempferol 3‐ O ‐ β ‐ D ‐galactopyranoside ( 9 ). The structures and absolute configurations of the new compounds were elucidated on the basis of spectroscopic (UV, ORD, CD, NMR) and mass‐spectrometric (HR‐ESI‐MS) analyses.

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