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  • Title: Two new ionone glycosides from the roots of Rehmannia glutinosa Libosch.
    Author: Feng WS, Li M, Zheng XK, Zhang N, Song K, Wang JC, Kuang HX.
    Journal: Nat Prod Res; 2015; 29(1):59-63. PubMed ID: 25232801.
    Abstract:
    Two new ionone glycosides, named frehmaglutoside G (1) and frehmaglutoside H (2), together with six known compounds, rehmapicroside (3), sec-hydroxyaeginetic acid (4), dihydroxy-β-ionone (5), trihydroxy-β-ionone (6), rehmaionoside A (7) and rehmaionoside C (8), were isolated from the 95% EtOH extract of the dried roots of Rehmannia glutinosa Libosch. Their structures were determined on the basis of extensive spectroscopic analyses, including HR-ESI-MS, UV, IR, 1D and 2D NMR ((1)H-(1)H COSY, HSQC, HMBC and NOESY) methods. The absolute configurations were confirmed via the circular dichroism spectra.
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