You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-1-[3-(4-methoxyphenyl)-2,4-dihydro-1,3-benzoxazin-6-yl]-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H27NO6
assistant