I5E i5e 3-(4'-{[(4S,7S,11R,19S)-19-{[2-(2-aminoethoxy)ethyl]carbamoyl}-7-benzyl-3,6,12,15,21-pentaoxo-1,3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,19,20,21,22-icosahydro-2H-7,11-methano-2,5,11,16,20-benzopentaazacyclotetracosin-4-yl]methyl}[1,1'-biphenyl]-4-yl)propanoic acid I5E