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-[[2-(3,4-dimethoxyphenyl)-2-oxoethyl]amino]-3-ethylpentan-2-yl] (2R)-2-anilino-2-phenylacetate .
user
C31H38N2O5
assistant