You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-trimethylsilylethyl (2S)-7-[dimethoxy(oxido)phosphaniumyl]-2-[(2-methylpropan-2-yl)oxycarbonylamino]heptanoate into molecular formula.
user
C19H40NO7PSi
assistant