You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [4-[[(2R,5S)-5-[(9-bromo-8-oxononanoyl)amino]-2-[3-(carbamoylamino)propyl]-6-methyl-4-oxoheptanoyl]amino]phenyl]methyl N-[[2-[(3R,4R,5R,7S)-5-[(1E,3E)-5-[(2S,3S,5R,6R)-3,6-dimethyl-5-[[(Z)-4-methylpent-2-enoyl]amino]oxan-2-yl]-3-methylpenta-1,3-dienyl]-4-hydroxy-1,6-dioxaspiro[2.5]octan-7-yl]acetyl]-methylamino]carbamate .
user
C57H86BrN7O13
assistant