You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]-1-(1-methylsulfonylpiperidin-3-yl)methanamine into molecular formula.
user
C11H20N4O3S
assistant