You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 4-(4-methyl-2-pyridin-2-yl-1,3-thiazole-5-carbonyl)piperazine-1-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H24N4O3S
assistant