You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-[1-[(2S)-3-(azepan-1-yl)-2-hydroxypropyl]indol-3-yl]-1-(4-methylphenyl)prop-2-en-1-one into its molecular formula.
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C27H32N2O2
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