You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-(2,3-dihydro-1,4-benzodioxin-6-yl)-2-(3-methyl-4-oxoquinazolin-2-yl)sulfanylpropanamide into its molecular formula.
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C20H19N3O4S
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