4-(5-(bis(2-hydroxyethyl)amino)-2-hydroxy-1-methyl-2,3-dihydro-1H-benzo[d]imidazol-2-yl)butanoic acid

2-氯乙醇

1-甲基-5-硝基-1H-苯并咪唑-2-丁酸乙酯

2-氟-5-硝基苯胺

戊二酸酐