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 N-[(4R,4aR,7S,7aR,12bS)-3-(cyclopropylmethyl)-11-hydroxy-9-methoxy-2,4,4a,5,6,7,7a,13-octahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-yl]-5-cyclohexyl-N-(4-phenylbutyl)pentanamide .
user
C42H58N2O4
assistant