Английская Википедия:Estradiol benzoate cyclooctenyl ether

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Estradiol benzoate cyclooctenyl ether (EBCO), or estradiol 3-benzoate 17β-cyclooctenyl ether, is a synthetic estrogen as well as estrogen ester and ether – specifically, the C3 benzoate ester and C17β cyclooctenyl ether of estradiol – which was described in the early 1970s and was never marketed.[1][2][3][4] It has been found to have a dramatically prolonged duration of action with oral administration in animals, similarly to the related compound quinestrol (the 3-cyclopentyl ether of ethinylestradiol).[1][5][6] A single oral dose of EBCO sustained high uterus weights for 3 weeks in rats.[1] This long-lasting activity may be due to storage of EBCO in fat.[1] It appears that EBCO is absorbed satisfactorily from the gastrointestinal tract, at least partially survives first-pass metabolism in the liver and intestines, and is then sequestered into fat, from which it is slowly released and activated into estradiol.[1] In contrast to quinestrol, the oral activity of EBCO is greatly improved when it is delivered in an oil solution as opposed to an aqueous vehicle.[1]

See also

References

Шаблон:Reflist

Шаблон:Estradiol Шаблон:Estrogen receptor modulators


Шаблон:Steroid-stub Шаблон:Genito-urinary-drug-stub