| abstract |
Benzopyran compounds with strong anti-estrogenic activity and essentially no estrogenic activity are provided, which are OP- 1038, which is 3-(4-hydroxyphenyl)-4-methyl-2-(4-{2-[(3R)-3-methylpyrrolidin-l-yl]ethoxy}phenyl)-2H-chromen-7-ol, and OP-1074, which is (2S)-3-(4-hydroxyphenyl)-4-methyl-2-(4-{2-[(3R)-3-methylpyrrolidin- 1 -yl]ethoxy}phenyl)-2H-chromen-7-ol. OP-1074 is a pure anti-estrogen when tested in the agonist mode and a complete anti-estrogen when tested in the antagonist mode. These compounds are useful for the treatment or prevention of a variety of conditions that are modulated through the estrogen receptor in mammals including humans. |