You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[(2R,4S,5R)-3-[tert-butyl(dimethyl)silyl]oxy-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-5-(deuteriomethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H46N5O6PSi
assistant