You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (E)-N-[3-hydroxy-2-methoxy-5-[(E)-2-(3,4,5-trimethoxyphenyl)ethenyl]phenyl]-3-(2-hydroxyphenyl)prop-2-enamide using the IUPAC nomenclature.
user
C27H27NO7
assistant