You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(1S,2S)-6-methoxy-1-phenyl-2,3-dihydro-1H-inden-2-yl]-3-[(1R)-1-naphthalen-1-ylethyl]urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H28N2O2
assistant