(2S,3R)-2-{[(2R,5S,8S,11R,14S,17R,20R)-11-(1H-indol-3-ylmethyl)-20-amino-8-(4-aminobutyl)-14-[(4-hydroxyphenyl)methyl]-21-(2-naphthyl)-1,4,7,10,13,16,19-heptaoxo-5-(prop-2-yl)-2,17-bis(sulfanylmethyl)-3,6,9,12,15,18-hexazahenicos-1-yl]amino}-3-hydroxybutanamide,2,2,2-trifluoroacetic acid (1:n)