Structural revision of oleoacteoside and oleoechinacoside

@article{Machida2010StructuralRO,
  title={Structural revision of oleoacteoside and oleoechinacoside},
  author={K. Machida and E. Matsuoka and M. Kikuchi},
  journal={Natural Product Research},
  year={2010},
  volume={24},
  pages={737 - 742}
}
  • K. Machida, E. Matsuoka, M. Kikuchi
  • Published 2010
  • Chemistry, Medicine
  • Natural Product Research
    • The structures of previously reported oleoacteoside and oleoechinacoside, both being caffeoyl phenylethanoid glycosides (acteoside, echinacoside) esterified with an oleoside 11-methyl ester, were revised by 2D-NMR spectral analysis. 
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    6 Citations
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    205 nm; flow rate, 1.5 mL min À1 ] to give 2 (35.0 mg). Fraction 1-6-4 was subjected to preparative HPLC [column, Cosmosil 5C18-AR
      205 nm; flow rate, 1.5 mL min À1 ] to give crude 1, which was purified by preparative HPLC (column, TSK gel Amide-80
        205 nm; flow rate, 1.5 mL min À1 ] to give crude 2, which was purified by preparative HPLC [column, TSK gel Amide-80
          An amorphous powder
          • FAB-MS: m/z 1173
          Plant material The leaves of S. reticulata were collected near Sendai, Miyagi prefecture
          • A voucher specimen is held in the laboratory of M. Kikuchi
          UV (MeOH): max (log ") ¼ 220 (4.30)
          • FAB-MS: m/z 1033 [M þ Na] þ . HR-FAB-MS: m/z 1033.3162 [M þ Na] þ (Calcd for C 46 H 58 O 25 Na: 1033.3190). 1 H-and 13 C-NMR