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 2-[(8R)-7,16-dioxo-17-oxa-6-azaspiro[4.13]octadec-10-en-8-yl]-N-[(2S)-1-hydroxy-3-phenylpropan-2-yl]acetamide into molecular formula.
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C27H38N2O5
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