NOVELTY - Preparing ulipristal acetate (I), comprises: (vi) reacting 1-(2-methyl-(1,3)dioxolan-2-yl)-2,3,3a,4,7,7a-hexahydro-1H-inden-1-ol compound (VII) with hydrogen peroxide to obtain 3,3,20,20-bis-(ethylene-dioxy)-17 alpha -hydroxy-5,10-epoxy-19-norpregn-9(11)-ene compound (VIII); (vii) reacting (VIII) with a solution of 4-bromo-N,N-dimethyl aniline (a2); (viii) reacting (R)-3-ethyl-1-(2-methyl-(1,3)dioxolan-2-yl)-2-propyl-cyclopentanol compound (IX) with a solution of sulfuric acid; and (ix) acylating 1-((R)-1-hydroxy-octahydro-inden-1-yl)-ethanone compound (X) with acetic anhydride.    USE - The process is useful for preparing (I) (claimed), which has antiprogestational and antiglucocorticoidal activities. No biological data given.    ADVANTAGE - The process allows for safe, economical, environmental friendly and feasible preparation of (I) with high yield and quality.    DETAILED DESCRIPTION - Preparing ulipristal acetate of formula (I), comprises: (i) reacting 3-(ethylene-dioxy)-estra-5(10), 9(11)-diene-17-one compound of formula (II) with acetylene gas in the presence of base and a solvent to obtain 3-(ethylene-dioxy)-17 alpha -ethynyl-17 beta -hydroxy-estra-5(10),9(11)-diene compound of formula (III); (ii) reacting (III) with phenylsulfenyl chloride of formula (a1) in chloroform in the presence of triethylamine and solvent to obtain isomeric mixture of 3-(ethylene-dioxy)-21-(phenyl-sulfinyl)-19-norpregna-5(10),9(11),17(20),20-tetraene compound of formula (IV); (iii) reacting (IV) first with sodium methoxide in a solvent and then with trimethyl phosphite to obtain 3-(ethylene-dioxy)-17 alpha -hydroxy-20-methoxy-19-norpregna-5(10),9(11),20-triene compound of formula (V); (iv) reacting (V) with hydrogen chloride in a solvent to obtain 3-(ethylene-dioxy)-17 alpha -hydroxy-19-norpregna-5(10),9(11)-diene-20-one compound of formula (VI); (v) reacting (VI) with ethylene glycol in a solvent in the presence of trimethyl orthoformate and p-toluene sulfonic acid to obtain 1-(2-methyl-(1,3)dioxolan-2-yl)-2,3,3a,4,7,7a-hexahydro-1H-inden-1-ol compound of formula (VII); (vi) reacting (VII) with hydrogen peroxide in a solvent in the presence of hexahaloacetone comprising hexachloroacetone/hexafluoroacetone and disodiumhydrogen phosphate to obtain 3,3,20,20-bis-(ethylene-dioxy)-17 alpha -hydroxy-5,10-epoxy-19-norpregn-9(11)-ene compound of formula (VIII); (vii) reacting (VIII) with a solution of 4-bromo-N,N-dimethyl aniline of formula (a2) in tetrahydrofuran in the presence of cuprous iodide and Grignard reagent to obtain 3(R)-3-ethyl-1-(2-methyl-(1,3)dioxolan-2-yl)-2-propyl-cyclopentanol compound of formula (IX); (viii) reacting (IX) with a solution of sulfuric acid in water in the presence of a solvent to obtain 1-((R)-1-Hydroxy-octahydro-inden-1-yl)-ethanone compound of formula (X); (ix) acylating (X) with acetic anhydride in the presence of perchloric acid to obtain (I), and (x) optionally, purifying (I) by crystallizing with solvent(s).