You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (1S,5S,6R,7R)-3-[(2,4-dimethoxyphenyl)methyl]-4-oxo-10-oxa-3-azatricyclo[5.2.1.01,5]dec-8-ene-6-carboxylic acid into its molecular formula.
user
C18H19NO6
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