You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (2S,3S,4S,5R,6S)-6-[4-[(E)-2-(3,5-dimethoxyphenyl)ethenyl]phenoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid ?
user
C22H24O9
assistant