You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 6-bromo-3-[(2-chlorophenyl)methyl]-2-[(5-methyl-1,3,4-oxadiazol-2-yl)methylsulfanyl]quinazolin-4-one .
user
C19H14BrClN4O2S
assistant