You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(1-methylindol-3-yl)-2-(4-methyl-1-morpholin-4-yl-1-oxopentan-2-yl)-3H-isoindol-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H31N3O3
assistant