You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (2S,3R,4S,5S,6R)-2-[[4-[[4-[(E)-4-(2-azaspiro[5.5]undecan-2-yl)but-1-enyl]-2-methylphenyl]methyl]-3-propan-2-yl-2H-pyrrol-5-yl]oxy]-6-(hydroxymethyl)oxane-3,4,5-triol by IUPAC nomenclature, provide its molecular formula.
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C35H52N2O6
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