You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-[3-[(4-bromobenzoyl)amino]phenyl]-N-(2-methoxyphenyl)-8-methyl-2,3,4,6-tetrahydropyrimido[2,1-b][1,3]thiazine-7-carboxamide .
user
C29H27BrN4O3S
assistant