Ru 486 (i.e., Ru 38486, Ru 486-6, Mifepristone, Mifestone, Mifegyne, (11b-[4-(n, N-dimethylamino) Phenyl]-17a-(prop-1-ynyl)-^ 4,9-estradiene-17b-ol-3-one, (11b,17b)11-[4-(dimethylamino)-phenyl]-17-hydroxy-17-(1-propynyl) Estra-4,9-dien-3-one) Patents (Class 514/DIG1)