You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R,2S,3S,4R,5R,7S,8S,10R)-5-ethoxy-1,7-dihydroxy-2,4,8,10,12,15,15-heptamethyl-9-oxo-13-tricyclo[9.3.1.03,8]pentadec-11-enyl] (2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H53NO8
assistant