11β-Substituted 13β-ethyl gonane derivatives exhibit reversal of antiprogestational activity
摘要:
The syntheses of three 17 alpha-acetoxy-13 beta-ethyl-11 beta-aryl-18,19-dinorpregna-4,9-diene-3,20 diones from levonorgestrel are described Despite their close structural similarity To the antiprogesterone CDB-2914, one of the compounds exhibits agonistic progestational activity, and the other two compounds are totally inactive. (C) 1998 by Elsevier Science Inc.
11β-Substituted 13β-ethyl gonane derivatives exhibit reversal of antiprogestational activity
摘要:
The syntheses of three 17 alpha-acetoxy-13 beta-ethyl-11 beta-aryl-18,19-dinorpregna-4,9-diene-3,20 diones from levonorgestrel are described Despite their close structural similarity To the antiprogesterone CDB-2914, one of the compounds exhibits agonistic progestational activity, and the other two compounds are totally inactive. (C) 1998 by Elsevier Science Inc.