You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (2R)-2-[[(2S)-2-[[2-[(2-methylpropan-2-yl)oxycarbonylamino]acetyl]amino]-2-phenylacetyl]amino]-3-phenylpropanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H31N3O6
assistant