You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[5-[(Z)-[5-(3-bromo-4-methoxyphenyl)-6-ethoxycarbonyl-3-oxo-7-propyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-2-ylidene]methyl]furan-2-yl]benzoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H27BrN2O7S
assistant