1. Xanthones and Xanthone O ‐ β ‐D‐Glucosides from the Roots of Polygala azizsancarii Dönmez
- Author
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İhsan Çalış, Ayşe Ünlü, Zübeyde Uğurlu Aydın, Ali A. Dönmez, Hasan Soliman Yusufoğlu, Simon Jurt, and Anthony Linden
- Subjects
Magnetic Resonance Spectroscopy ,Glucosides ,Molecular Structure ,Polygala ,Xanthones ,Molecular Medicine ,Bioengineering ,General Chemistry ,General Medicine ,Plant Roots ,Molecular Biology ,Biochemistry - Abstract
Nine xanthone derivatives (1-9) were isolated from the roots of Polygala azizsancarii, which is a narrow endemic species for the flora of Türkiye. Based on all of the evidence, the structures of 1-9 were established as two previously undescribed xanthone O-glucosides, 3-O-β-D-glucopyranosyloxy-1,6-dihydroxy-2,5,7-trimethoxyxanthone (1), 3-O-β-D-glucopyranosyloxy-1,6-dihydroxy-2,7-dimethoxyxanthone (2), and seven previously described xanthones, 1,3,6-trihydroxy-2,5,7-trimethoxyxanthone (3), 1,3,6-trihydroxy-2,7-dimethoxyxanthone (4), 1,2,3,4,7-pentamethoxyxanthone (5), 1,3-dihydroxy-2,5,6,7-tetramethoxyxanthone (6), 1,3-dihydroxy-4,7-dimethoxyxanthone (7), 1,7-dihydroxy-3-methoxyxanthone (8), and 1,7-dihydroxy-2,3-methylenedioxyxanthone (9). The structures of the compounds were determined by spectroscopic methods, including 1D-NMR (
- Published
- 2022
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