You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-methyl-4-[3-[5-(trifluoromethyl)pyridin-2-yl]oxypyrrolidin-1-yl]-5,6,7,8-tetrahydroquinazoline into its molecular formula.
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C19H21F3N4O
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