You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(1S,2S,3R,4S,7R,9S,10R,12R,15S)-12-(3-acetamidopropanoyloxy)-4-acetyloxy-15-[(2R,3R)-3-benzamido-2-methyl-3-phenylpropanoyl]oxy-1-hydroxy-9,10,14,17,17-pentamethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate by IUPAC nomenclature, provide its molecular formula.
user
C52H60N2O13
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