You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 1-(2-cyano-7,7-dimethyl-2-trimethylsilyloxy-1-bicyclo[2.2.1]heptanyl)-N,N-di(propan-2-yl)methanesulfonamide .
user
C20H38N2O3SSi
assistant