You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-[2-[2-[(2-amino-2-oxoethyl)amino]-2-oxoethyl]-8-(9H-fluoren-9-ylmethoxycarbonyl)-3-oxo-1-thia-4,8-diazaspiro[4.5]decan-4-yl]propanoic acid into molecular formula.
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C29H32N4O7S
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