You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(2R)-1-cyanobutan-2-yl] N-[(1S)-1-[3-[1-(4-amino-3-methoxyanilino)ethenylamino]phenyl]ethyl]carbamate ?
user
C23H29N5O3
assistant