7-((4-aminobutyl)amino)-1-cyclopropyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

4''-O-[3-({2-[(3-carboxy-1-cyclopropyl-1,4-dihydro-4-oxoquinolin-7-yl)amino]butyl}amino)propanoyl]-6-O-methylerythromycin A

4''-O-[3-({2-[(3-carboxy-1-cyclopropyl-1,4-dihydro-4-oxoquinolin-7-yl)amino]butyl}amino)propanoyl]-azithromycin