You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (2S,6S)-2-[(2S)-2-[tert-butyl(dimethyl)silyl]oxy-4-chlorobutoxy]-6-[(2S)-1-tri(propan-2-yl)silyloxypropan-2-yl]oxane-2-carbonitrile is given. What is its corresponding molecular formula?
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C28H56ClNO4Si2
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