Patents
A process for the preparation of novel phytoecdysteroids, chemical name 2,3,9,20,21-pentahydroxy-cholest-7-en-6-one, which comprises: - (a) extracting the parts of the plants Taxus baccata or Taxus baccata var.wallichiana with a polar organic solvent. (b) concentrating the extract by known methods at a temperature in the range of 40-50°C to give residue,- (c) defatting the above said residue with non polar solvents such as herein described, extracting the defatted residue with chloroform, concentrating the chloroform extract and purifying the chloroform extract by conventional repeated chromatographic methods to given 2,3,9,20,21-pentahydroxy-cholest-7-en-6-one.