You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1S)-1-(4-methoxycyclohexyl)-2-[1-methyl-2-(thiolan-2-yl)-3,3a,4,6,7,7a-hexahydro-2H-imidazo[4,5-c]pyridin-5-yl]ethanol into its molecular formula.
user
C20H37N3O2S
assistant