You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[2-[[1,3-bis[(2-methylpropan-2-yl)oxy]-1,3-dioxopropan-2-yl]amino]ethyl-[(4-methoxyphenyl)methyl]amino]-3-(4-nitrophenyl)propanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H41N3O9
assistant