You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (3R)-N-[(5-ethyl-1,2,4-oxadiazol-3-yl)methyl]-N-methyl-1-(2-methylsulfonylethyl)pyrrolidin-3-amine .
user
C13H24N4O3S
assistant