P-({2-[(1R,2R,3aS,3bS,9aS,9bR,10S,11aS)-9b-fluoro-1,10-dihydroxy-2,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,7,9a,9b,10,11,11a-dodecahydro-1H-cyclopenta[1,2-a]phenanthren-1-yl]-2-oxoethyl}oxy)-P-({2-[(1R,2S,3aS,3bS,9aS,9bR,10R,11aS)-9b-fluoro-1,10-dihydroxy-2,9a,11a-trimethyl-7-oxo-2,3,3a,3b,4,5,7,9a,9b,10,11,11a-dodecahydro-1H-cyclopenta[1,2-a]phenanthren-1-yl]-2-oxoethyl}oxy)phosphinate sodium