10.1016/j.bmc.2005.06.059
The research aimed to develop new non-carbohydrate inhibitors to combat bacterial resistance to aminoglycoside antibiotics. The study focused on designing inhibitors containing the 1,3-diamine pharmacophore, a common motif in aminoglycosides, and synthesizing a library of molecules with various side chains attached to this motif. The key chemicals used included primary amines A–I, 1,3-dichloropropane for the initial synthesis, and acryloyl chloride for an alternate synthetic route. The researchers identified several diamines that inhibited multiple aminoglycoside-modifying enzymes (AGMEs), with compound G,H being the first non-carbohydrate inhibitor competitive with the aminoglycoside substrate for ANT(200), and compound H,I acting as a competitive inhibitor for both APH(30) and ANT(200) with respect to metal–ATP. The study concluded that the presence of specific functional groups, such as amine H (3-(dimethylamino)propylamine), was crucial for enzyme recognition and inhibition. The findings suggest that this approach could lead to the development of more potent non-carbohydrate inhibitors of AGMEs, potentially restoring the efficacy of aminoglycoside antibiotics against resistant bacteria.