GC-072 is an orally active, 4-oxoquinolizine antibiotic that selectively inhibits bacterial DNA gyrase and Topo IV enzymes. GC-072 does not inhibit human topoisomerases I and II. GC-072 demonstrates strong antimicrobial activity against various bacterial strains, including Gram-positive, Gram-negative, and resistant bacteria. GC-072 also exhibits bactericidal activity against Burkholderia pseudomallei both extracellularly and intracellularly, leading to dose-dependent survival in mice exposed to lethal inhalational models of B. pseudomallei infection. GC-072 can be used for the research of melioidosis[1].