. . . . . . . . . "Diprogulic acid" . "diprogulic acid" . . . . "Dikegulac acid; Diacetone-2-ketogulonic acid; Oxogulonic acid diacetonide; Sodium dikegulac; Sodium diprogulate" . "(3aS,3bR,7aS,8aR)-2,2,5,5-Tetramethyltetrahydro-2H,5H,8aH-[1,3]dioxolo[4\u2032,5\u2032:4,5]furo[3,2-d][1,3]dioxole-8a-carboxylic acid" . . . . . . . . . . . . . "Diprogulic acid" .