Heteroatom containing tetracyclic derivatives as selective...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Reexamination Certificate

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07105679

ABSTRACT:
The present invention is directed to novel heteroatom containing tetracyclic derivatives, pharmaceutical compositions containing them, their use in the treatment and/or prevention of disorders mediated by one or more estrogen receptors and processes for their preparation. The compounds of the invention are useful in the treatment and/or prevention of disorders associated with the depletion of estrogen such as hot flashes, vaginal dryness, osteopenia and osteoporosis; hormone sensitive cancers and hyperplasia of the breast, endometrium, cervix and prostate; endometriosis, uterine fibroids, osteoarthritis and as contraceptive agents, alone or in combination with a progestogen or progestogen antagonist.

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