. . "experimental"@en . . . . . . . . . . . . . . . . . . . . . "4-Benzoylamino-4-{1-{1-Carbamoyl-2-[4-(Difluoro-Phosphono-Methyl)-Phenyl]-Ethylcarbamoyl}-2-[4-(Difluoro-Phosphono-Methyl)-Phenyl]-Ethylcarbamoyl}-Butyric Acid"@en . . . . . . . . . . .