label: N'-(4-carboxyphenyl)-N-(1-(1-hydroxy-5,6,7,8-tetrahydrobenzo(f)quinoxaline-2,3-(1H,4H)-dion-9-yl)pyrrol-3-yl)methylurea
label_lc: n'-(4-carboxyphenyl)-n-(1-(1-hydroxy-5,6,7,8-tetrahydrobenzo(f)quinoxaline-2,3-(1h,4h)-dion-9-yl)pyrrol-3-yl)methylurea