N.N'-Bis-(5-(5-carboxy-pentyl-aminocarbonyl)-pentyl)-korksaeurediamid

[8]6-benzyloxycarbonylamino-lin-hepta[1=>6]hexanoylamino-hexanoic acid methyl ester

7,14,21,28,35,42,49-Heptaazapentapentacontanoic acid,55-amino-8,15,22,29,36,43,50-heptaoxo-