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 1-O-tert-butyl 2a-O-methyl 5-[(E)-2-ethoxycarbonyl-3-[methyl(2-trimethylsilylethoxycarbonyl)amino]prop-2-enyl]-2,3-dihydrobenzo[cd]indole-1,2a-dicarboxylate is given. What is its corresponding molecular formula?
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C31H44N2O8Si
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