You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl-[[2-(2,3-dihydro-1-benzofuran-5-yl)-1H-imidazol-5-yl]methoxy]-dimethylsilane is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H26N2O2Si
assistant