21-氯代达哪唑及其C6-脱氢物的合成
SYNTHESIS OF 21-CHLORODANAZOL AND ITS △6-ANALOGUE
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Abstract: Synthesis was undertaken of 21-chloro-danazol (Ⅳa) and 21-chloro-6-dehydro-danazol (Ⅳb). The binding ability of these compounds to progesterone receptor were examined and were found to be less active than danazol.Compound (Ⅳa) showed significant activity for eary pregnancy termination effect in Sprague-Dawley rats.
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