2-[[2-[[2-[[2-[[2-[[2-[[2-[[[6-acetyl-5,8,11,14,17,20,23,27-octahydroxy-18-(2-hydroxy-2-iminoethyl)-12-(1H-imidazol-5-ylmethyl)-15-(1H-indol-3-ylmethyl)-3-methyl-2-oxo-1,4,7,10,13,16,19,22,26-nonazabicyclo[26.3.0]hentriaconta-4,7,10,13,16,19,22,26-octaen-25-yl]-hydroxymethylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]-1-hydroxy-3-phenylpropylidene]amino]-1-hydroxy-3-phenylpropylidene]amino]-1,4-dihydroxy-4-iminobutylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino]-3-(1H-indol-3-yl)propanoic acid