Trofosides A and B and other cytostatic steroid-derived compounds from the far east starfish Trofodiscus über

@article{Levina2007TrofosidesAA,
  title={Trofosides A and B and other cytostatic steroid-derived compounds from the far east starfish Trofodiscus {\"u}ber},
  author={Eleonora V Levina and Anatoly I. Kalinovsky and P. V. Andriyashchenko and Natalia I. Menzorova and Pavel S. Dmitrenok},
  journal={Russian Journal of Bioorganic Chemistry},
  year={2007},
  volume={33},
  pages={334-340}
}
Three new polar steroids identified as trofoside A, 20R,24S)-24-O-(3-O-methyl-β-D-xylopyranosyl)-3β,6α,8,15β,24-pentahydroxy-5α-cholestane, its 22(23)-dehydro derivative (trofoside B), and 15-sulfooxy-(20R,24S)-5α-cholestane-3β,6β,8,15α,24-pentaol sodium salt, were isolated fromTrofodiscus über starfish extracts collected in the Sea of Ohotsk. Two known compounds, trofoside A aglycone, (20R,24S)-3β,6α,8,15β,24-pentahydroxy-5α-cholestane, and triseramide, (20R,24R,25S,22E)-24-methyl-3β6α,8,15… 
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