You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-[5-[4-[[(1S,3S,4S)-3-ethyl-4-methylcyclopentyl]amino]pyrimidine-5-carbonyl]furan-3-yl]ethanone .
user
C19H23N3O3
assistant