7-((3S,5S)-3-((S)-3-carboxy-2-hydroxypropanamido)-5-methylpiperidin-1-yl)-1-cyclopropyl-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid compound with 7-((3S,5S)-3-((S)-3-carboxy-3-hydroxypropanamido)-5-methylpiperidin-1-yl)-1-cyclopropyl-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (1:1)