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 N-[4-amino-2-[2-[(4-methylphenyl)methylamino]-2-oxoethyl]sulfanyl-6-oxo-1H-pyrimidin-5-yl]-5-bromofuran-2-carboxamide ?
user
C19H18BrN5O4S
assistant