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 ethyl (1R,2R,5S,6S,7S)-2-[(2-chlorophenyl)carbamoyl]-3-[(2S)-1-hydroxybutan-2-yl]-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]decane-6-carboxylate into molecular formula.
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C22H27ClN2O6
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