(2S,5S,8S,11R,16R,19S,22S,25S)-11,16-diamino-2,25-bis(3-amino-3-oxopropyl)-5,22-di((S)-sec-butyl)-8,19-bis(4-hydroxybenzyl)-4,7,10,17,20,23-hexaoxo-13,14-dithia-3,6,9,18,21,24-hexaazahexacosanedioic acid
(2S,5S,8S,11R,16R,19S,22S,25S)-11,16-diamino-2,25-bis(3-amino-3-oxopropyl)-5,22-di((S)-sec-butyl)-8,19-bis(4-hydroxybenzyl)-4,7,10,17,20,23-hexaoxo-13,14-dithia-3,6,9,18,21,24-hexaazahexacosanedioic acid