You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,2R,6R,7S,9R,12R)-4-methyl-12-phenyl-7-phenylmethoxy-3,8,11,13-tetraoxa-5-azatricyclo[7.4.0.02,6]tridec-4-ene into molecular formula.
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C22H23NO5
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