You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(2R,3S,4S,5E,8S,9R,10R,11S,16R,17R,18R)-3,8,9,11-tetraacetyloxy-2,17-dihydroxy-4,7,7,16-tetramethyl-14-oxo-10-propanoyloxy-15-oxatricyclo[9.6.1.12,16]nonadec-5-en-18-yl] benzoate into its molecular formula.
user
C40H52O16
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