D-Phenylalanyl Nateglinide;N-[(trans-4-Isopropylcyclohexyl)carbonyl]-D-phenylalanyl-D-phenylalanine;N-[[trans-4-(1-Methylethyl)cyclohexyl]carbonyl]-D-phenylalanyl-D-phenylalanine;Nateglinide EP Impurity F;(2R)-3-phenyl-2-[[(2R)-3-phenyl-2-[(4-propan-2-ylcyclohexanecarbonyl)amino]propanoyl]amino]propanoic acid;Nateglinide EP Imp F;Nateglinide impurity 4/Nateglinide EP Impurity F/N-[[trans-4-(1-methylethyl)cyclohexyl]carbonyl]-d-phenylalanyl-d-phenylalanine;Nateglinide impurity F