(2S)-1-((2R,11R)-2-(2-Amino-2-oxoethyl)-5-(carboxymethyl)-11-(3-guanidinopropyl)-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazaheptacosan-1-oyl)pyrrolidine-2-carboxylic acid 2,2,2-trifluoroacetate 1g

(2S)-1-((2R,11R)-2-(2-Amino-2-oxoethyl)-5-(carboxymethyl)-11-(3-guanidinopropyl)-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazaheptacosan-1-oyl)pyrrolidine-2-carboxylic acid 2,2,2-trifluoroacetate 1g