1 MCJ N-[(2,3-dihydroxyphenyl)carbonyl]-O-[(2s)-2-{[(2,3-dihydroxyphenyl)carbonyl]amino}-3-({N-[(2,3-dihydroxyphenyl)carbonyl]-L-seryl}oxy)propanoyl]-D-serine 1.000 2 EB4 N,N',N''-[(3s,7s,11s)-2,6,10-trioxo-1,5,9-trioxacyclododecane-3,7,11-triyl]tris(2,3-dihydroxybenzamide) 0.940 3 MCK N-[(2,3-dihydroxyphenyl)carbonyl]-O-[(2s)-2-{[(2,3-dihydroxyphenyl)carbonyl]amino}-3-(L-seryloxy)propanoyl]-L-serine 0.760