You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9H-fluoren-9-ylmethyl N-[1-[2-amino-3-[4-(4-chlorophenyl)phenyl]-3,3-difluoropropanoyl]-3-fluoropiperidin-4-yl]carbamate is the IUPAC name of a molecule. Please give its molecular formula.
user
C35H31ClF3N3O3
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