You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(3aS,4R,7aR)-6-[[(2S)-1-hydroxy-5-[(2-methylpropan-2-yl)oxy]-5-oxopentan-2-yl]carbamoyl]-3a,4,5,7a-tetrahydro-1,3-benzodioxol-4-yl] 4-[[(1R,4R,10S)-4,12,12-trimethyl-5-oxatricyclo[8.2.0.04,6]dodecan-9-ylidene]methyl]benzoate by IUPAC nomenclature, provide its molecular formula.
user
C39H53NO9
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