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For the molecule named 2,2,2-trichloroethyl 1-[4-[tert-butyl(diphenyl)silyl]oxy-3-(methylamino)but-1-en-2-yl]diazinane-3-carboxylate by IUPAC nomenclature, provide its molecular formula.
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C28H38Cl3N3O3Si
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