Abstract: Described herein are compounds which exhibit progesterone antagonistic effects and methods of treating cancer using such compounds.

Abstract: Described herein are 3-(6,6-ethylene-17?-hydroxy-3-oxo-17?-pregna-4-ene-17?-yl)propionic acid ?-lactone derivatives having progestational and aldosterone antagonistic activity. Also described herein are methods of preparing and using these novel compounds.

Abstract: Described herein are compounds which exhibit progesterone antagonistic effects and methods of treating cancer using such compounds.

Abstract: Described herein are 3-(6,6-ethylene-17?-hydroxy-3-oxo-17?-pregna-4-ene-17?-yl)propionic acid ?-lactone derivatives having progestational and aldosterone antagonistic activity. Also described herein are methods of preparing and using these novel compounds.

Abstract: A compound having the general formula: in which: R1 is a member selected from the group consisting of —OCH3, —SCH3, —N(CH3)2, —NHCH3, —CHO, —COCH3 and —CHOHCH3; R2 is a member selected from the group consisting of halogen, alkyl, acyl, hydroxy, alkoxy, acyloxy, alkyl carbonate, cypionyloxy, S-alkyl and S-acyl; R3 is a member selected from the group consisting of alkyl, hydroxy, alkoxy and acyloxy; IV is a member selected from the group consisting of hydrogen and alkyl; and X is a member selected from the group consisting of ?O and ?N—OR5 , wherein R5 is a member selected from the group consisting of hydrogen and alkyl.

Abstract: A compound having the general formula: in which: R1 is a member selected from the group consisting of —OCH3, —SCH3, —N(CH3)2, —NHCH3, —CHO, —COCH3 and —CHOHCH3; R2 is a member selected from the group consisting of halogen, alkyl, acyl, hydroxy, alkoxy, acyloxy, alkyl carbonate, cypionyloxy, S-alkyl and S-acyl; R3 is a member selected from the group consisting of alkyl, hydroxy, alkoxy and acyloxy; R4 is a member selected from the group consisting of hydrogen and alkyl; and X is a member selected from the group consisting of ?O and ?N—OR5, wherein R5 is a member selected from the group consisting of hydrogen and alkyl.

Abstract: The present invention relates, inter alia, to compounds having the general formula: in which: R1 is a member selected from the group consisting of —OCH3, —SCH3, —N(CH3)2, —NHCH3, —NC4H8, —NC5H10, —NC4H8O, —CHO, —CH(OH)CH3, —C(O)CH3, —O(CH2)2N(CH3)2, and —O(CH2)2NC5H10; R2 is a member selected from the group consisting of hydrogen, halogen, alkyl, acyl, hydroxy, alkoxy (e.g., methoxy, ethoxy, vinyloxy, ethynyloxy, cyclopropyloxy, etc.), acyloxy (e.g., acetoxy, glycinate, etc.), alkylcarbonate, cypionyloxy, S-alkyl, —SCN, S-acyl and —OC(O)R6, wherein R6 is a functional group including, but not limited to, alkyl (e.g., methyl, ethyl, etc.), alkoxy ester (e.g., —CH2OCH3) and alkoxy (—OCH3); R3 is a member selected from the group consisting of alkyl, hydroxy, alkoxy and acyloxy; R4 is a member selected from the group consisting of hydrogen and alkyl; and X is a member selected from the group consisting of ?O and ?N—OR5, wherein R5 is a member selected from the group consisting of hydrogen and alkyl.