You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methane;4-(4-phenylbutyl)piperidine-4-carbonitrile;4-(4-phenylbutyl)-1-(2-pyridin-4-ylpyridine-3-carbonyl)piperidine-4-carbonitrile;2-pyridin-4-ylpyridine-3-carboxylic acid;2,2,2-trifluoroacetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C59H71F3N8O5
assistant