You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2R,3S,4R,5R,6S)-3,6-dimethoxy-2-[(4-methoxyphenyl)methoxymethyl]-4,5-bis(phenylmethoxy)-3-prop-2-enyloxane .
user
C33H40O7
assistant