O(3alpha)-,O(21)-di-(N(1)-methyloxycarbonyl-2, 4-dioxo-5-fluoropyrimidinyl)-17alpha-hydroxy-5beta-pregnan-20-one
o(3alpha)-,o(21)-di-(n(1)-methyloxycarbonyl-2, 4-dioxo-5-fluoropyrimidinyl)-17alpha-hydroxy-5beta-pregnan-20-one