You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(3,4-dimethylphenyl)-1-(5-oxo-7-propyl-[1,3,4]thiadiazolo[3,2-a]pyrimidin-2-yl)piperidine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27N5O2S
assistant