15,16-seco-19-nor progestins
AssigneeSRI International
InventorsRichard H. Peters, Masato Tanabe
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Abstract
The invention is drawn to 17-oxo-15,16-seco-19-nor steroids which are useful as intermediates in the production of various 15,16-seco-19-nor progestins. These progestins display elevated progestational activity with a minimum of ancillary hormonal activity and are thus useful in the suppression of ovulation in the human female.
Claims15
A compound having the formula (VI):
- ##STR53## wherein R.sup.2 is selected from the group consisting of hydrogen, lower alkyl and cyano.
A compound having the formula ##STR54## wherein R.sup.2 is selected from the group consisting of hydrogen, lower alkyl and cyano.
A compound having the formula ##STR55## wherein R.sup.2 is selected from the group consisting of hydrogen, lower alkyl and cyano, and X is a hydroxyl protecting group.
Dependencies are inferred from the claim text.