(2S,5S,8S,11S,14S,17S)-17-Amino-2-(2-amino-2-oxoethyl)-14-benzyl-5-(3-guanidinopropyl)-18-hydroxy-8,11-diisobutyl-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazaoctadecan-1-oic acid
2,3-Diisobutyl-2,3-dimethylsuccinonitrile
