Bacitracin F

(R)-5-(((2S,3S)-1-(((7S,10R,13S,16R,19S,22R,25S)-19-((1H-imidazol-4-yl)methyl)-25-(2-amino-2-oxoethyl)-10-(3-aminopropyl)-16-benzyl-13-((S)-sec-butyl)-22-(carboxymethyl)-8,11,14,17,20,23,26-heptaoxo-1-oxa-2,9,12,15,18,21,24-heptaazacyclohexacosan-7-yl)amino)-3-methyl-1-oxopentan-2-yl)amino)-4-((S)-4-methyl-2-(2-((S)-2-methylbutanoyl)thiazole-4-carboxamido)pentanamido)-5-oxopentanoic acid