You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name tert-butyl 7-(4-chlorophenyl)-6,7-dihydro-4H-triazolo[5,1-c][1,4]oxazine-3-carboxylate into its molecular formula.
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C16H18ClN3O3
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