You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[5-(2-methylpropyl)-1,3,4-thiadiazol-2-yl]-2-(5-phenyl-1,3-oxazol-2-yl)benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H20N4O2S
assistant