N-[(3S,6R,9R,12R,15R,18R,19S)-12-benzyl-6-[(1R)-1-hydroxyethyl]-3-(hydroxymethyl)-19-methyl-9,15-bis(2-methylpropyl)-2,5,8,11,14,17-hexaoxo-1-oxa-4,7,10,13,16-pentaazacyclononadecan-18-yl]-Nalpha-(2-methylbutanoyl)-D-phenylalaninamide