6,6-Difluoronorethisterone, also known as 6,6-difluoro-17α-ethynyl-19-nortestosterone or as 6,6-difluoro-17α-ethynylestr-4-en-17β-ol-3-one, is a
steroidal
progestin of the
19-nortestosterone group that was described in 1971 but was never marketed.
It is a fluorinated
derivative
In mathematics, the derivative of a function of a real variable measures the sensitivity to change of the function value (output value) with respect to a change in its argument (input value). Derivatives are a fundamental tool of calculus. ...
of
norethisterone. The C17β
acetate ester
In chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group () is replaced by an alkoxy group (), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides a ...
,
6,6-difluoronorethisterone acetate, has also been
synthesized and described.
References
Estranes
Enones
Organofluorides
Progestogens
Alkynols
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