You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-1-[2-[[(2S)-3-[(2S,4R,5R)-3-acetamido-5-hydroxy-6-(hydroxymethyl)-4-[(2R,3S,5R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-2-aminobutanoyl]amino]-3-methylbutanoyl]-N-[1-[[(2S)-1-[[1-[[(2S)-1-[[1-[[(2S)-1-amino-1-oxopropan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]pyrrolidine-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H91N11O20
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