Icatibant Impurity 1

Chemical Name: ((3aS,7aS)-1-((3S)-3-((2S)-2-(2-((1R,4S)-2-((1R)-2-((5-guanidinopentanoyl)-L-arginyl)cyclopentane-1-carbonyl)-4-hydroxycyclopentane-1-carboxamido)acetamido)-3-(thiophen-2-yl)propanamido)-4-oxo-3,4,7,11b-tetrahydro-2H,6H-[1,3]oxazino[2,3-a]isoquinoline-6-carbonyl)octahydro-1H-indole-2-carbonyl)arginine