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The invention is directed to 11.beta.-arylsteroids of formula
II: ##STR1## wherein R.sup.1, R.sup.6, R.sup.8, R.sup.12 and X are
as defined by the specification. The compounds exhibit potent
antiprogestational activity and are useful in the treatment of
fibroids, endometriosis, cervical ripening prior to delivery,
hormone replacement therapy and in the control of fertility.