You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[[2-diethoxyphosphoryl-3-[ethoxy(hydroxy)phosphoryl]oxybutyl]amino] 2-amino-2-[1-[ethoxy(hydroxy)phosphoryl]oxyethyl]-4-methylsulfanyl-3,3-diphenylbutanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H51N2O13P3S
assistant