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 (E)-4-[(4S)-2,2-dimethyl-1,3-dioxolan-4-yl]-1-[(2R,3S,4R,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]but-3-en-2-one .
user
C43H48O8
assistant