You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule methyl 4-[4-(5-bromo-4-methoxypyrimidin-2-yl)piperazin-1-yl]thieno[3,2-d]pyrimidine-2-carboxylate ?
user
C17H17BrN6O3S
assistant