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 (4R)-4-[(1R,2S,3R)-2-[(1S,3R,4R,7S)-1,7-bis(3-aminopropoxy)-4-[(3S)-3-butoxybutyl]-3,4-dimethylnonyl]-2,3-dimethylcyclopentyl]-N-octylpentanamide .
user
C45H91N3O4
assistant