(3R,15S,21S)-9-[hydroxy-[4-methoxy-3-(3-methylbut-2-enyl)phenyl]methyl]-3-(1H-indol-3-ylmethyl)-15-propan-2-yl-1,4,7,10,13,16,19-heptazabicyclo[19.3.0]tetracosane-2,5,8,11,14,17,20-heptone