You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule tert-butyl 4-[4-[(5-carbamoyl-4-methyl-1,3-thiazol-2-yl)oxy]phenyl]piperazine-1-carboxylate ?
user
C20H26N4O4S
assistant