Phytoecdysteroids of plants of the genus Rhaponticum polypodin B 22-O-benzoate from Rhaponticum carthamoides

Article abstract of DOI:10.1007/BF02249636

A known ecdysteroid - α-ecdysone - and a newphytoecdysteroid - polypodin B-22-O-benzoate - have been isolated from the seeds of Rhaponticum carthamoides (Willa) Iljin. Alkaline hydrolysis of the latter gave polypodin B. Its structure has been established on the basis of chemical transformations and spectral characteristics.