2-甲基-2-[[4-(三氟甲基)苯基]氨基甲酰氨基]丙酸甲酯

5,5-二甲基-3-(4-氟苯基)-2,4-咪唑烷二酮

2-[(4-chlorophenyl)carbamoylamino]-2-methylpropanoic acid