A method for removing impurities from racemic cis-6-phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaph- thalen-2-ol and purified cis-6-phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaph- thalen-2-ol useful as an estrogen agonist/antagonist.

 
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