Pyrrolizidine Alkaloids from Echium rauwolfii and Echium horridum (Boraginaceae)

  title={Pyrrolizidine Alkaloids from Echium rauwolfii and Echium horridum (Boraginaceae)},
  author={A. El-Shazly and M. Abdel-all and A. Tei and M. Wink},
  journal={Zeitschrift f{\"u}r Naturforschung C},
  pages={295 - 300}
Abstract Echimidine was isolated from Echium rauwolfii and Echium horridum and identified by MS, 1H-and 13C NMR as a major alkaloid. In addition, structures of 12 minor alkaloids were inferred from GLC and GLC-MS analyses: 7-angeloylretronecine, 7-tigloylretronecine, lycopsamine, 7-acetyllycopsamine, uplandicine, 7-angeloyllycopsamine, 7-tigloyllycopsamine, tigloyl isomer of echimidine, 7-angeloyl-9-(2-methylbutyryl)retronecine, 7-tigloyl-9-(2-methylbutyryl)retronecine, 7-angeloyl-9-(2,3… Expand
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