An object of the present invention is to provide a compound and a pharmaceutical composition which exhibit strong antibacterial activity against Gram-negative bacteria and drug-resistant Gram-negative bacteria. According to the present invention, a compound represented by General Formula [1] (the reference signs in the formula have the same definitions as those described in the present specification) or a salt thereof has strong antibacterial activity against Gram-negative bacteria such as
Pseudomonas aeruginosa
and drug-resistant Gram-negative bacteria including multidrug-resistant
Pseudomonas aeruginosa
, and the pharmaceutical composition containing the compound or a salt thereof is useful as an antibacterial agent.
本发明的目的是提供一种化合物和药物组合物,对革兰氏阴性细菌和耐药革兰氏阴性细菌表现出强大的抗菌活性。根据本发明,由通式[1]表示的化合物(式中的参考标记具有与本说明书中描述的相同定义)或其盐对革兰氏阴性细菌如
铜绿假单胞菌和包括多重耐药
铜绿假单胞菌在内的耐药革兰氏阴性细菌具有强大的抗菌活性,含有该化合物或其盐的药物组合物作为抗菌剂是有用的。