Planta Med 2014; 80 - PD28
DOI: 10.1055/s-0034-1382449

Further constituents from Taraxacum officinale

W Herath 1, IA Khan 1, 2, 3
  • 1National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences
  • 2Department of Pharmacognosy, School of Pharmacy, The University of Mississippi, University, MS 38655, USA
  • 3Department of Pharmacognosy, College of Pharmacy, King Saud University, 11451 Riyadh, Saudi Arabia

MeOH extract of the roots of Taraxacum officinale yielded α-amyrin (1), fatty alchol (2), sitosterol (3), stigmasterol (4), 3-acetoxy-19, 21-epoxyl-lupane (5), daucosterol (6), ursolic acid (7), taraxinic acid (8), α-amyrin palimitate (9), taraxasterol palmitate (10), α-amyrin acetate (11) and lupeol acetate (12). Structure elucidation was based on spectroscopic evidence. 5 is characterized as a new compound. This is the first report on the isolation of α-amyrin palimitate and taraxteryl palmate from T. officinale. Sugars constituted the bulk of the extract.

Fig. 1: α-Amyrin palmitate 9

Fig. 2: Taraxasteryl palmitate 10

Fig. 3: 3β-acetoxy- 18β, 19β-epoxylupan-21β-ol 5