abstract |
NEW 14X, 17A-METHYLENEDIOXYPREGNANE DERIVATIVES ARE PROVIDED WHEREIN ATOMS 14 AND 17 OF THE STEROID SKELETON ARE BRIDGED BY ONE CARBON AND TWO OXYGEN ATOMS, ARRANGED IN SUCH A WAY THAT THEY FORM A 1,3-DIOXANE RING SYSTEM WITH CARBON ATOMS 13, 14 AND 17 OF THE STEROID SKELETON. |