You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(2-fluorophenyl)-1,3-thiazole-5-carbonyl]-N-(furan-2-ylmethyl)piperidine-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H20FN3O3S
assistant