(4S,7S,10S,13S)-4-((S)-sec-butyl)-7-(2-carboxyethyl)-10-((R)-1-hydroxyethyl)-13-((4-methyl-2-oxo-1,2-dihydroquinolin-7-yl)carbamoyl)-2,5,8,11-tetraoxo-3,6,9,12-tetraazapentadecan-15-oic acid