Patent ID: 8563599

Claim:
A method for treating breast or ovarian cancer, and/or for modulating estrogen receptors, comprising: administering an effective amount of a composition comprising: a) the compound a pharmaceutically acceptable salt thereof made from an acid or a base, or a stereoisomer thereof; and b) optionally, a further compound selected from the group consisting of: pharmaceutically acceptable salts thereof made from an acid or a base, or a stereoisomer thereof, and combinations thereof, to a subject in need thereof, thereby treating said breast or ovarian cancer, and/or modulating said estrogen receptors wherein: the “a” to “b” ring systems are joined by a cis-fusion; the 3,4-dihydroxy groups, when present, are in a cis-orientation; R 1 is H, benzyl, or Si[CH 3 ] 2 [C(CH 3 ) 3 ]; and R 2 is H, benzyl, methoxymethyl, or Si[CH 3 ] 2 [C(CH 3 ) 3 ].