You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2,3-dihydro-1-benzofuran-5-yl)-5-[(2S,4S)-2-methylpiperidin-4-yl]-1,2,4-oxadiazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H19N3O2
assistant