Allenestrol

Allenestrol (also known as acetophenone estradiol, ethinyl estradiol acetophenone, or ethinylestradiol acetophenone) is a synthetic, steroidal estrogen that was never marketed. It is an estrogen ester – specifically, the 3-acetophenone ester of ethinylestradiol.

Chemistry

Allenestrol, also known as ethinylestradiol 3-acetophenone, is a synthetic estrane steroid and a derivative of estradiol. It is more specifically a derivative of ethinylestradiol (17α-ethynylestradiol), which itself is a derivative of estradiol.

Pharmacology

As a prodrug of ethinylestradiol, allenestrol is a synthetic estrogen, and hence is an agonist of the estrogen receptor, the biological target of endogenous estrogens like estradiol.

History

Allenestrol was first described in the literature in 1958. It was never marketed.

See also

• List of estrogen esters
• List of synthetic estrogens

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