You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name acetamidomethyl 3-[[2,2-dimethylpropyl-methyl-(5-oxocyclopenten-1-yl)oxysilyl]methylsulfanyl]propanoate into its molecular formula.
user
C18H31NO5SSi
assistant