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Petrorhagiosides A – D, New γ ‐Pyrone Derivatives from Petrorhagia saxifraga Link
Author(s) -
D'Abrosca Brigida,
Pacifico Severina,
Scognamiglio Monica,
Tsafantakis Nikolaos,
Pagliari Emanuela,
Monaco Pietro,
Fiorentino Antonio
Publication year - 2013
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.201200378
Subject(s) - chemistry , heteronuclear single quantum coherence spectroscopy , stereochemistry , pyrone , herbaceous plant , two dimensional nuclear magnetic resonance spectroscopy , botany , biology
Abstract Four novel γ ‐pyrone (=4 H ‐pyran‐4‐one) metabolites, petrorhagiosides A–D, along with four known analogs, have been isolated from the MeOH extract of Petrorhagia saxifraga , a perennial herbaceous plant typical of Mediterranean vegetation. The structures of the new compounds were established on the basis of extensive spectroscopic analyses including 1D‐ an 2D‐NMR ( 1 H, 1 H‐DQ‐COSY, TOCSY, HSQC, CIGAR‐HMBC, and HSQC‐TOCSY) experiments.