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system
Name the molecular formula for the molecule established as [(4S,10S)-4,12-diacetyloxy-1,9-dihydroxy-15-[2-hydroxy-5-methyl-3-(propan-2-yloxycarbonylamino)hex-4-enoyl]oxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-12-en-2-yl] benzoate using the IUPAC nomenclature.
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C42H55NO15
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