You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-3-[[(1R,2S,4S)-2-bicyclo[2.2.1]heptanyl]amino]-1-(furan-2-yl)-3-oxoprop-1-en-2-yl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C21H22N2O3
assistant