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Long-acting contraceptive agents: cyclopropyl and cyclobutyl esters of norethisterone
Steroids
|March 1, 1983
Abstract:
Several esters of norethisterone (17 alpha-ethynyl-17 beta-hydroxyestr-4-en-3-one) with carboxylic acids containing a cyclopropyl or cyclobutyl ring have been synthesized and the stereochemistries of the side-chains determined.
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