You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-tert-butyl-5-[(2-phenyl-1,3-oxazol-4-yl)methylsulfinylmethyl]-1,2,4-oxadiazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H19N3O3S
assistant