You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[(1S,2R)-3,3-difluoro-2-hydroxycyclopentyl]carbamoyl]spiro[3.3]heptane-2-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H19F2NO4
assistant