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 [(2R)-1-[[(1S,2S)-2-methylcyclohexyl]amino]-1-oxopropan-2-yl] 3-[(4-chlorobenzoyl)amino]propanoate .
user
C20H27ClN2O4
assistant