Method of modifying bone resorption with .DELTA.9(11)-dehydro-8-

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai

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552625, A61K 31565

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active

054968143

ABSTRACT:
This invention relates to 8.alpha.-3-hydroxyestra-1,3,5(10),9(11)tetraen-17-one (.DELTA.9(11)-dehydro-8-isoestrone) (VI), ##STR1## to the process for its preparation, to pharmaceutical compositions containing said 8.alpha.-3-hydroxyestra-1,3,5(10),9(11)tetraen-17-one (.DELTA.9(11)-dehydro-8-isoestrone) (VI) and to the use of said 8.alpha.-3-hydroxyestra-1,3,5(10),9(11)tetraen-17-one (.DELTA.9(11)-dehydro-8-isoestrone) (VI) for modifying the balance between bone production and bone resorption, and as an antioxidant in a host animal, including man.

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