You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1'-[3-(4-fluorophenyl)prop-2-enyl]-5-propylspiro[6,7-dihydro-1H-imidazo[4,5-c]pyridine-4,4'-piperidine] ?
user
C22H29FN4
assistant