You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3S,5S,9S)-5-(quinolin-6-ylmethylamino)-1,7-diazatricyclo[7.3.0.03,7]dodecane-2,8-dione into its molecular formula.
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C20H22N4O2
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