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,4aS,7aR,12bR)-9-methoxy-7a-methyl-3-(2-phenylethyl)-4a-(3-phenylpropoxy)-1,2,4,5,6,13-hexahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one .
user
C35H39NO4
assistant