You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[3-[1-(2-bromophenyl)-5-methyltriazol-4-yl]-1,2,4-thiadiazol-5-yl]-4-tert-butylbenzamide into molecular formula.
user
C22H21BrN6OS
assistant