You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 1-(4-fluorophenyl)sulfonyl-N-[3-(3-methyl-1,2,4-oxadiazol-5-yl)propyl]piperidine-4-carboxamide ?
user
C18H23FN4O4S
assistant