You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-(2,3-dihydro-1H-inden-5-yl)-1-[(3R)-1-(4-methylphenyl)-5-oxopyrrolidine-3-carbonyl]piperidine-4-carboxamide ?
user
C27H31N3O3
assistant