You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (2R)-2-[[1-[(2-chloro-6-fluorophenyl)methyl]indol-3-yl]methylamino]-3-(1H-indol-3-yl)propanoic acid .
user
C27H23ClFN3O2
assistant