You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[3-(3-fluorophenyl)-2-methyl-5-propan-2-ylcyclohepta-1,3,5-trien-1-yl]-3-methylpiperazine into molecular formula.
user
C22H29FN2
assistant