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US 2014/0371180 A1Published application
Process for purification and isolation of estrogens
AssigneeDr. Reddy's Laboratories, Inc.
InventorsChandrashaker Akula, John Lomans, Madhukiran Tummidi, Prashant Anil Tatake
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Abstract
The present application relates to a method for obtaining a mixture of estrogens from the pregnant mare's urine.
Claims25
A method for obtaining a mixture of estrogens, comprising:
- (a) adsorbing a mixture of estrogens from pregnant mare's urine on a resin;
- (b) washing the resin loaded with the mixture of estrogens with water immiscible organic solvent;
- (c) isolating the mixture of estrogens from the resin loaded with the mixture of estrogens.
Dependencies are inferred from the claim text.