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 methyl-[(1R)-1-[methyl-[2-[(2,2,2-trifluoroacetyl)amino]ethyl]carbamoyl]spiro[1,2-dihydroindene-3,4'-piperidine]-1'-yl]borinic acid .
user
C20H27BF3N3O3
assistant