You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 3-(4-tert-butylphenyl)-1-(4-ethylpiperazin-1-yl)-3-(5-methoxy-1H-indol-3-yl)propan-1-one ?
user
C28H37N3O2
assistant