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 [(2R,3S,4S,5R,6S)-4,5-dibenzoyloxy-6-ethylsulfanyl-2-[[methoxy-[(methoxy-oxido-phenylmethoxyphosphaniumyl)methyl]-oxidophosphaniumyl]oxymethyl]oxan-3-yl] benzoate using the IUPAC nomenclature.
user
C39H42O13P2S
assistant